Alzheimer's Disease

Alzheimer's disease (AD) is an age-related, non-reversible brain disorder that develops over a period of years. Initially, people experience memory loss and confusion, which may be mistaken for the kinds of memory changes that are sometimes associated with normal aging. However, the symptoms of AD gradually lead to behavior and personality changes, a decline in cognitive abilities such as decision-making and language skills, and problems recognizing family and friends. AD ultimately leads to a severe loss of mental function. These losses are related to the worsening breakdown of the connections between certain neurons in the brain and their eventual death. AD is one of a group of disorders called dementias that are characterized by cognitive and behavioral problems. It is the most common cause of dementia among people age 65 and older.

There are three major hallmarks in the brain that are associated with the disease processes of AD.

* Amyloid plaques, which are made up of fragments of a protein called beta-amyloid peptide mixed with a collection of additional proteins, remnants of neurons, and bits and pieces of other nerve cells.
* Neurofibrillary tangles (NFTs), found inside neurons, are abnormal collections of a protein called tau. Normal tau is required for healthy neurons. However, in AD, tau clumps together. As a result, neurons fail to function normally and eventually die.
* Loss of connections between neurons responsible for memory and learning. Neurons can't survive when they lose their connections to other neurons. As neurons die throughout the brain, the affected regions begin to atrophy, or shrink. By the final stage of AD, damage is widespread and brain tissue has shrunk significantly.

Orthorexia

orthorexia nervosa is not an official psychiatric diagnosis (it’s typically categorized as a variety of anorexia), Dr. Bratman’s disorder does possess unique attributes. The main difference between an orthorexic and an anorexic is the individual’s motivation. Dr. Bratman used the prefix “ortho” to mean right or true. Orthorexics don’t operate from a desire to be thin; instead, they strive to eat pure and healthy foods. While this condition may sound innocuous at first, it can have serious consequences. These health food addicts may obsess about eating the right foods to the point of social isolation, pathological obsession, and even starvation.

Specialized diets have achieved wider popularity in the United States in the last few years. Widely acclaimed regimens such as the Atkins diet (which allows little to no carbohydrates) have introduced self-imposed severe dietary restrictions to the mainstream, and made unusual or rigid dietary practices more socially acceptable than ever before. In addition, escalating obesity rates in the United States over the past two decades have created a backlash of healthy and socially-conscious eating in some areas.

Anorexia Nervosa

Anorexia nervosa is an extremely dangerous eating disorder in which a person intentionally deprives herself or himself of food and can literally starve to death in an attempt to be what they consider "thin." The disorder involves extreme weight loss—at least 15% below the individual's "ideal" weight—and a refusal to maintain body weight that is even minimally normal for their age and height and body frame.

The self-esteem of individuals with this disorder is hyper-dependent on their body shape and weight. Even if they become extremely emaciated, an anorexic person's distorted body image convinces them they are "fat." Weight loss for them is viewed as an impressive self-achievement and an indication of extraordinary self-discipline, whereas weight gain is perceived as an unacceptable failure of self-control.

Colorectal Cancer

Cancer of the colon or rectum is also called colorectal cancer. In the United States, it is the fourth most common cancer in men and women. Caught early, it is often curable.

It is more common in people over 50, and the risk increases with age. You are also more likely to get it if you have

* Polyps - growths inside the colon and rectum that may become cancerous
* A diet that is high in fat
* A family history or personal history of colorectal cancer
* Ulcerative colitis or Crohn's disease

Symptoms can include blood in the stool, narrower stools, a change in bowel habits and general stomach discomfort. However, you may not have symptoms at first, so screening is important. Everyone who is 50 or older should be screened for colorectal cancer. Colonoscopy is one method that your doctor can use to screen for colorectal cancer. Treatments for colorectal cancer include surgery, chemotherapy, radiation or a combination.