A cataract is a cloudy area in the lens of your eye. Cataracts are very common as you get older. In fact, more than half of all Americans age 80 or older either have cataracts or have had surgery to get rid of cataracts.

At first, you may not notice that you have a cataract. But over time, cataracts can make your vision blurry, hazy, or less colorful. You may have trouble reading or doing other everyday activities.

There are 3 types of Cataracts:

1-Nuclear cataracts, which form in the lens’ nucleus, are the most common type of cataracts. Because opacity develops in the center of the lens, known as the central nucleus, nuclear cataracts interfere with a person’s ability to see objects in the distance. Usually the result of advancing age, nuclear cataracts can take years to develop and often give the nucleus a yellow tint.

2=Cortical cataracts begin at the outer rim of the lens and gradually work toward the central core. Thus, this type of cataract resembles spokes of a wheel. Patients with cortical cataracts often notice problems with glare, or a “halo” effect around lights. They may also experience a disruption of both near and distance vision.

3-Subcapsular cataracts progress the most rapidly. While nuclear cataracts take years to develop, subcapsular cataracts reach an advanced stage within a matter of months. Posterior subcapsular cataracts affect the back of the lens, causing glare and blurriness. This type of cataract is usually seen in patients who suffer from diabetes, extreme nearsightedness or retinitus pigmentosa, as well as among those who take steroid medication.

Obesity is most commonly linked to the development of posterior subcapsular cataracts. According to researchers at Harvard University, individuals with a BMI of 33 had at least a 30 percent greater likelihood of developing cataracts, compared to subjects with a BMI of 23 or below.

**Congenital cataracts exist and refer to cataracts that are present from birth, as well as to those that develop in early childhood. These cataracts can be nuclear, cortical, or subcapsular. Congenital cataracts may be linked to an infection contracted by the mother during pregnancy or to a genetic condition such as Fabry disease, Alport syndrome, or galactosemia. Because clear vision is essential to the development of the child’s eyes and brain, it is important to diagnose congenital cataracts as early as possible.

Most cataracts form as a result of advancing age. Other possible causes of cataracts include environmental factors and certain medications, such as antidepressants. If your medical history or lifestyle increases your risk of developing cataracts, it is important to have your eye health monitored regularly by a qualified ophthalmologist.

Over 50 percent of Americans over the age of 80 have cataracts

RISK FACTORS:

1 Age

Age is the main reason cataracts form. According to the American Academy of Ophthalmology, the eye disease appears in over 22 million Americans over the age of 40. Over 50 percent of Americans over the age of 80 have cataracts. In fact, if we live long enough, nearly all of us will eventually develop this condition. Because the lens of the eye cannot shed old cells naturally, protein that accumulates on the lens gradually builds up over time, progressively obscuring vision by preventing light from reaching the retina.

2 History of Cataracts in the family

3 Ultraviolet Radiation (UVA or UVB)

According to the U.S. Environmental Protection Agency, long-term exposure to ultraviolet radiation, especially UVB rays, can cause changes in pigment that lead to the formation of cataracts. This is especially common in tropical climates, where high concentrations of UV exposure occur year-round. To protect the eyes from sun damage, it is important to wear sunglasses with a high level of UVA/UVB protection.

4 Trauma to the eye

Injury or trauma to the eye increases a patient’s risk of developing cataracts. Individuals who have experienced inflammation in the eye, either post-operatively or as the result of another eye disease, are also more likely to eventually develop cataracts. For instance, iritis is an ocular condition that causes chronic inflammation inside the eye, and is commonly linked to early and rapid cataract formation.

5 Have certain health problems, like diabetes

6 Smoking and Alcohol

Lifestyle habits such as smoking or consuming alcohol are often considered causes of cataracts.

7 Medications

Certain medications are well-known causes of cataracts, and some drugs can also accelerate their development. Steroid medications – whether pills, injections, or eye drops – are most frequently associated with cataract formation. If you are taking steroid medications to manage a long-term condition, it is important to note any visual changes and to have your ocular health managed by a qualified ophthalmologist.

Most cataracts are caused by normal changes in your eyes as you get older.

When you’re young, the lens in your eye is clear. Around age 40, the proteins in t he lens of your eye start to break down and clump together. This clump makes a cloudy area on your lens — or a cataract. Over time, the cataract gets more severe and clouds more of the lens.

“Alzheimer’s disease is the most common cause of dementia. Alzheimer’s disease is the biological process that begins with the appearance of a buildup of proteins in the form of amyloid plaques and neurofibrillary tangles in the brain. This causes brain cells to die over time and the brain to shrink.

About 6.9 million people in the United States age 65 and older live with Alzheimer’s disease. Among them, more than 70% are age 75 and older. Of the more than 55 million people in the world with dementia, 60% to 70% are estimated to have Alzheimer’s disease.

There is no cure for Alzheimer’s disease.”

MAYO CLINIC (Alzheimer’s disease – Symptoms and causes – Mayo Clinic)

Alzheimer’s disease is the most common form of dementia. This progressive brain disease develops slowly but has a huge impact on those who are living with it, their families, and caregivers.

The number of people living with Alzheimer’s disease is growing. The ripple effect is straining families, communities, and the healthcare system, yet talking about the disease on a personal level can be difficult.

FACTS on Alzheimer’s Disease:

“APHASIA (Uh-Fay-Zhuh) is a result of a STROKE or BRAIN INJURY, and affects a person’s ability to communicate. It is important to remember that you are still a competent adult, you know what you want to say, you can make your own decisions and you are not deaf. Aphasia usually comes on suddenly from a stroke or brain injury. But in rare cases it may develop gradually. This is called Primary Progressive Aphasia (PPA). If you have aphasia, you may find it hard to: TALK, LISTEN/UNDERSTAND OTHERS WHEN THEY SPEAK, READ, WRITE, USE NUMBERS AND DO CALCULATIONS.”

National Aphasia Association (What is Aphasia? – The National Aphasia Association)

What is aphasia?

Aphasia is a disorder that results from damage to portions of the brain that are responsible for language. For most people, these areas are on the left side of the brain. Aphasia usually occurs suddenly, often following a stroke or head injury, but it may also develop slowly, as the result of a brain tumor or a progressive neurological disease. The disorder impairs the expression and understanding of language as well as reading and writing. Aphasia may co-occur with speech disorders, such as dysarthria or apraxia of speech, which also result from brain damage.

Who can acquire aphasia?

Most people who have aphasia are middle-aged or older, but anyone can acquire it, including young children. About 1 million people in the United States currently have aphasia, and nearly 180,000 Americans acquire it each year, according to the National Aphasia Association.

What causes aphasia?

Aphasia is caused by damage to one or more of the language areas of the brain. Most often, the cause of the brain injury is a stroke. A stroke occurs when a blood clot or a leaking or burst vessel cuts off blood flow to part of the brain. Brain cells die when they do not receive their normal supply of blood, which carries oxygen and important nutrients. Other causes of brain injury are severe blows to the head, brain tumors, gunshot wounds, brain infections, and progressive neurological disorders, such as Alzheimer’s disease.

What types of aphasia are there?

There are two broad categories of aphasia: 1-fluent and 2-nonfluent, but know there are several types within these groups.  So the 2 main groups of aphasia are as follows:

1- Fluent aphasia

There is damage to the posterior temporal lobe of the brain.

This may result in Wernicke’s aphasia (see figure above), the most common type of fluent aphasia. People with Wernicke’s aphasia may speak in long, complete sentences that have no meaning, adding unnecessary words and even creating made-up words.

For example, someone with Wernicke’s aphasia may say, “You know that smoodle pinkered and that I want to get him round and take care of him like you want before.”

As a result, it is often difficult to follow what the person is trying to say. People with Wernicke’s aphasia are often unaware of their spoken mistakes. Another hallmark of this type of aphasia is difficulty understanding speech.

2- Nonfluent aphasia

The most common type of nonfluent aphasia is Broca’s aphasia (see figure above).

People with Broca’s aphasia have damage that primarily affects the frontal lobe of the brain.  Damage to a discrete part of the brain in the left frontal lobe (Broca’s area) of the language-dominant hemisphere has been shown to significantly affect the use of spontaneous speech and motor speech control. Words may be uttered very slowly and poorly articulated.

They often have right-sided weakness or paralysis of the arm and leg because the frontal lobe is also important for motor movements. People with Broca’s aphasia may understand speech and know what they want to say, but they frequently speak in short phrases that are produced with great effort. They often omit small words, such as “is,” “and” and “the.”

For example, a person with Broca’s aphasia may say, “Walk dog,” meaning, “I will take the dog for a walk,” or “book book two table,” for “There are two books on the table.” People with Broca’s aphasia typically understand the speech of others fairly well. Because of this, they are often aware of their difficulties and can become easily frustrated.

OTHER TYPES OF APHASIA:

– Global aphasia, results from damage to extensive portions of the language areas of the brain. Individuals with global aphasia have severe communication difficulties and may be extremely limited in their ability to speak or comprehend language.  Damage to the language processing centers in the left hemisphere of your brain, including Wernicke’s and Broca’s areas, can cause global aphasia. These two areas are critical for the production and understanding of language.

This is the most severe form of aphasia. It usually involves the following features.

• Loss of fluency. People with global aphasia struggle with the physical act of speaking. People with the most severe forms of this might only make small or isolated sounds, or they might not make any sounds at all (mutism). They also may repeat words or simple phrases over and over (this is a problem with fluency, as they’ll still have trouble repeating back words or phrases you say to them).
• Problems with understanding. People with this struggle to understand what others are saying. They might understand very simple sentences, but the more complex the sentence or phrase, the harder it is to understand.
• Struggle with repetition. Global aphasia affects repetition, meaning a person with it might struggle to repeat back words or phrases you say to them.
• Other symptoms: This kind of aphasia happens with conditions that cause severe brain damage, such as major strokes or head injuries. The damage is usually severe and affects multiple parts of the brain, causing other serious symptoms like one-sided paralysis, blindness and more.

Other forms of aphasia

• Transcortical motor aphasia: This is similar to Broca’s aphasia but usually not as severe. A key difference is that people with this don’t have a problem repeating back phrases or sentences you say to them.
• Transcortical sensory aphasia: This type is similar to Wernicke’s aphasia but usually not as severe. Like with transcortical motor aphasia above, people with this type don’t have a problem repeating back what you say. This type of aphasia is common with degenerative brain conditions like Alzheimer’s disease.
• Conduction aphasia: This type of aphasia affects fluency but not understanding. People with this struggle to pronounce words, especially when trying to repeat something you say to them.
• Mixed transcortical aphasia: This aphasia is like global aphasia, except that people with this can still repeat what people say to them.
• Anomic aphasia: People with this kind of aphasia struggle to find words, especially names of objects or words that describe actions. To get around this problem, they often use several words to explain what they mean or non-specific words like “thing” instead.

“The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body. Together, the brain and spinal cord that extends from it make up the central nervous system, or CNS.

Weighing about 3 pounds in the average adult, the brain is about 60% fat. The remaining 40% is a combination of water, protein, carbohydrates and salts. The brain itself is a not a muscle. It contains blood vessels and nerves, including neurons and glial cells.

Gray and white matter are two different regions of the central nervous system. In the brain, gray matter refers to the darker, outer portion, while white matter describes the lighter, inner section underneath. In the spinal cord, this order is reversed: The white matter is on the outside, and the gray matter sits within.

The brain sends and receives chemical and electrical signals throughout the body. Different signals control different processes, and your brain interprets each. Some make you feel tired, for example, while others make you feel pain.”

John Hopkins Medicine (Brain Anatomy and How the Brain Works | Johns Hopkins Medicine)

IIlustration body part,human brain left and right functions

The brain is like a committee of experts. All the parts of the brain work together, but each part has its own special properties. The brain can be divided into three basic units: 1 the forebrain, 2 the midbrain, and 3 the hindbrain.

1-THE CEREBRUM (The Forebrain) AND ITS FUNCTIONS:  Knowing what part of the cerebrum, if the brain injury is their, can explain the reasons for the symptoms the individual is having.

1-The forebrain is the largest and most highly developed part of the human brain: it consists primarily of the cerebrum and the structures hidden beneath it, which is the inner brain.

THE REGIONS (The 4 LOBES) THAT MAKE UP THE CEREBRUM:

The cerebrum, the large, outer part of the brain, controls reading, thinking, learning, speech, emotions and planned muscle movements like walking. It also controls vision, hearing and other senses. The cerebrum is divided two cerebral hemispheres (halves): left and right. The right half controls the left side of the body. The left half controls the right side of the body.

Each hemisphere has four sections, called lobes: frontal, parietal, temporal and occipital.  A lobe simply means a part of an organ (earlobe for example).  Each lobe controls specific functions. For example, the frontal lobe controls personality, decision-making and reasoning, while the temporal lobe controls, memory, speech, and sense of smell.

–The frontal lobe is the largest lobe of the brain.  The frontal lobe are the last parts of the brain develop as a person ages and the part of the human brain that is most different from other mammals and primates.  The last part to mature is the prefrontal lobe. This happens during adolescence. Many things affect brain development including genetics, individual and environmental factors.  We learn to become adults in our frontal lobes.   You choose between good and bad actions; override and suppress socially unacceptable responses; and determine similarities and differences between objects or situations. The frontal lobe is considered to be the moral center of the brain because it is responsible for advanced decision making processes. It also plays an important role in retaining emotional memories derived from the limbic system, and modifying those emotions to fit socially accepted norms.  The frontal lobes are considered our emotional control center and home to our personality. There is no other part of the brain where lesions can cause such a wide variety of symptoms (Kolb & Wishaw, 1990). The frontal lobes are involved in motor function, problem solving, spontaneity, memory, language, initiation, judgment, impulse control, and social and sexual behavior. Frontal lobe damage effects one or more of these areas depending on the severity of the damage.  The frontal lobes are extremely vulnerable to injury due to their location at the front of the cranium, proximity to the sphenoid wing and their large size. MRI studies have shown that the frontal area is the most common region of injury following mild to moderate traumatic brain injury.

–The parietal lobes can be divided into two functional regions. One involves sensation and perception and the other is concerned with integrating sensory input, primarily with the visual system. The first function integrates sensory information to form a single perception (cognition).  The parietal lobes have an important role in integrating our senses. In most people the left side parietal lobe is thought of as dominant because of the way it structures information to allow us to read & write, make calculations, perceive objects normally and produce language. Damage to the dominant parietal lobe can lead to Gerstmann’s syndrome (e.g. can’t tell left from right, can’t point to named fingers), apraxia and sensory impairment (e.g. touch, pain). Damage to the non-dominant lobe, usually the right side of the brain, will result in different problems. This non-dominant lobe receives information from the occipital lobe and helps provide us with a ‘picture’ of the world around us. Damage may result in an inability to recognize faces, surroundings or objects (visual agnosia). So, someone may recognize your voice, but not your appearance (you sound like my daughter, but you’re not her). Damage to the parietal lobe depends on severity and location of the area. Because this lobe also has a role in helping us locate objects in our personal space, any damage can lead to problems in skilled movements (constructional apraxia) leading to difficulties in drawing or picking objects up.

–The temporal lobes they are in the section of the brain located on the sides of the head behind the temples and cheekbones.   It’s responsible for processing auditory information from the ears (hearing).   The temporal lobes play an important role in organizing sensory input, auditory perception, language and speech production, as well as short term memory association and formation. The Temporal Lobe mainly revolves around hearing and selective listening. It receives sensory information such as sounds and speech from the ears. It is also the key to being able to comprehend, or understand meaningful speech. In fact, we would not be able to understand someone talking to us, if it wasn’t for the temporal lobe. This lobe is special because it makes sense of the all the different sounds and pitches (different types of sound) being transmitted from the sensory receptors of the ears. Temporal Lobes Kolb & Wishaw (1990) have identified eight principle symptoms of temporal lobe damage: 1) disturbance of auditory sensation and perception, 2) disturbance of selective attention of auditory and visual input, 3) disorders of visual perception, 4) impaired organization and categorization of verbal material, 5) disturbance of language comprehension, 6) impaired long-term memory, 7) altered personality and affective behavior, 8) altered sexual behavior. These can be due to tumors on the right or left side of the temporal lobe, due to seizures in the temporal lobe and if seizures regularly happen to this individual in the temporal region, which causes lack of oxygen to that area of that area of the brain it will effect one or more of the functions of that lobe which we discussed earlier, listed above.

-The last region or lobe that makes up the cerebrum is the occipital lobe. The occipital lobe is important to being able to correctly understand what our eyes are seeing. These lobes have to be very fast to process the rapid information that our eyes are sending. This is similar to how the temporal lobe makes sense of auditory information, the occipital lobe makes sense of visual information so that we are able to understand it. If our occipital lobe was impaired or injured we would not be able to correctly process visual signals, thus visual confusion would result.

2-Midbrain – The uppermost part of the brainstem is the midbrain, which controls some reflex actions and is part of the circuit involved in the control of eye movements and other voluntary movements.

3-The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum. The hindbrain controls the body’s vital functions such as respiration and heart rate. The cerebellum coordinates movement and is involved in learned rote movements. Rote means “mechanical or habitual repetition of something to be learned.”. Rote learning is flashcards, times tables, any kind of memorization-based learning. Rote movement applies to activities we do in a mechanical, repetitive way. Running, for example.  When you play the piano or hit a tennis ball you are activating the cerebellum= balance/coordination.

Knowing how the brain functions to understand this month’s awareness Aphasia (which we will discuss tomorrow).

“Allergies and sinus problems are common during the warmer seasons. A reason for this is that plants release pollen in the spring, summer, and fall. People allergic to pollen may experience symptoms similar to a cold during these seasons. However, a cold or flu will usually not last longer than 2 weeks, while allergies can last 6 weeks or longer — depending on the cause of your allergic reaction.

Depending on where you live, another cause of summer sinus problems is the hot and dry air, which can irritate your sinuses and lead to a sinus infection — or sinusitis.”

Medicine Net (Can Hot Weather Cause Sinus Problems?)

During summer and on those very hot days it is marvellous to go to the beach, relax at the pool side, have a barbeque or even picnic out with friends and family but then you may notice that your nose starts to run, you suddenly develop a headache or you feel stuffy.

Sinuses, which are paired air spaces connected to your nose, is lined with very delicate skin called the mucus membrane. The mucus membrane may then become inflamed by many things like bacteria, colds and flu’s, allergies or even a fungus invasion.  We start to feel all those dreadful symptoms when these sinus spaces are blocked, causing mucus build up and pressure.

The most common culprit of summer sinus problems is allergies and hay fever. We don’t hear enough about how pet hair, pollen, dander, dust and dust mites and even milk or how certain food allergies cause sinus problems. But what else about those hot days cause our sinuses to go ballistic?

One often hears about sudden extreme temperature changes causing increased sinus pain and a stuffy or runny nose, but how?

There are millions of tiny hair like structures called cilia that make up the mucus membrane, which lines your nose and sinuses. These cilia work together as a broom, helping to get rid of stagnant mucus that may block the sinuses. Your mucus membranes prefer a moist warm environment as opposed to it being very cold or very hot.

On hot summer days the air is very dry causing the mucus in your nose to become thick and sticky. This makes it difficult for the cilia to move or “sweep” the excess mucus out. This thick mucus then blocks the sinuses. When mucus flow is interrupted or blocked, it often becomes hard in nature and causes pressure and congestion. The pressure and the congestion then cause you to experience pain, stuffiness and headaches.

Know the difference:

Viral sinus infections

They are the most common type of sinusitis. Viruses that cause the common cold are usually the reason for the sinus infection. The symptoms of a viral sinus infection typically last up to seven to ten days.  The first few days your symptoms will worsen and after about the fifth day you may start to see improvement. These types of sinus infections generally go away on their own with rest and vitamin C. The symptoms you may experience while having a viral sinus infection are headaches, congestion, low fever, nasal discharge, and trouble sleeping.

Bacterial Infections

If your cold is lingering around and does not runs its course naturally you may actually have a bacterial sinus infection. Learn the signs that indicate your cold may be a bacterial sinus infection.  Viral sinus infections do not require antibiotics. When you experience sinus infection it will more than likely be a viral sinus infection.

Bacterial sinus infections are less common than viral sinus infections. It may be difficult to tell the difference between bacterial and viral sinus infections because they share common symptoms.

In some cases a viral sinus infection can develop into a bacterial sinus infections. This occurs when bacteria multiplies in fluid-filled sinus pockets. Bacterial sinus infections may also resolve on their own but may require antibiotics to fight off the bacteria.

Know when the signs or symptoms of a viral sinus infection has increased to a bacterial sinus infection are a noticeable increase in the severity of symptoms or failure to get better after seven to ten days.

Some common symptoms of bacterial sinusitis are worsening congestion,  more severe facial pain, and thickening or increase of nasal discharge. Bacterial sinus infections can also return shortly after your symptoms have healed, making you think, why do I keep getting sinus infections? If your nasal discharge or mucus is thick, dark, and/or greenish-yellowish, you may have converted to a bacterial sinus infection. Evaluation by your doctor can determine whether or not you have a bacterial or viral sinus infection. If your symptoms show no sign of improvement after ten days it is safe to say you have developed a bacterial sinus infection.

Summer Sinus Health Tips

1. Try to Avoid Pollen: Pollen levels are usually highest in the morning so try and stay indoors. Use a HEPA filter, reduce carpeting, and try and vacuum the interior of your home often. Keep your windows closed during especially bad sinus days.
   
   
2. Make sure you always have a Saline Nasal Spray: One of the most helpful precautions to ward off colds are to keep your nasal passages moist. 
   
   
3. Consider Nasal Irrigation: Cleaning out the nasal passages helps remove bacteria, pollutants and other irritants that can lead to sinus pain and infection. The simplest way is to lean over a sink and use a neti pot to run warm saline into and out of your nasal cavity. You can also use a squeeze bottle which is specifically designed to irrigate the nasal passages. 
   
   
4. Avoid nasal irritants: The membranes that line the nostrils and sinuses are very sensitive and can be damaged from an array of irritants. Two common irritants are tobacco smoke and chlorine. Additional items to avoid are exhaust, mold, and smoke of any kind. 
   
   
5. Be prepared when flying: The dry air and poor interior conditions in an airplane cabin are a perfect area for germs and bacteria to collect. Drinking lots of water and sporadically spraying inside your nose with a saline solution can help fight against these conditions.

“Migraine is a neurological disorder involving recurrent moderate to severe headaches, usually on one side of the head. “Headache” is a term used to describe a variety of different pain symptoms that originate from different parts of the head.”

healthline (Migraine vs. Headache: What’s the Difference?)