White noise machines are electronic devices used in both personal and professional settings that repeatedly play sounds such as an ocean tide or patterns of noise to block out unwanted noise, promote relaxation and provide privacy. However, white...
According to the National Institutes of Health, seizures that occur between age 6 months and age 5 are, in the majority of cases, benign. In contrast, seizures that occur in the neonatal period and in the first months of life are often the first...
When the muscles in the walls of veins and arteries contract, it is referred to as vasoconstriction, which is typically an undesirable event that happens as a result of medications or for psychological reasons. The condition can have mild to...
A clouding of the natural lens of the eye is called a cataract. There are three types of age-related cataracts---nuclear, cortical and posterior subcapsular---that can develop as people get older, according to The Eye Digest. Each type of cataract...
Chemicals in the brain, called neurotransmitters, play a role in depression. Sometimes, the chemicals become imbalanced, causing depressive symptoms to arise. Although there are several reasons a person can become depressed, this is the biological...
Schizophrenia is a chronic, incurable mental disease. This disordered thinking process includes delusions, hallucinations, paranoia and a host of other frightening events occurring within the diseased mind. According to the Betty Hardwick Center,...
People with diabetes are at high risk of eye complications, from minor to severe, reports the Diabetes Teaching Center at the University of California, San Francisco. A severe complication of diabetes is blindness; however, most eye disorders are...
Cataracts, clouding of the lens inside the eye that focuses images on the retina, are inescapable. According to ophthalmologist Charles Slonim of All About Vision, all people develop cataracts, if they live long enough. However, cataracts usually...
Vitamin B-12 is essential for red blood cell formation, nerve functioning and DNA manufacture. B-12, part of the vitamin B-complex, is found mostly in meat and dairy products. Deficiencies of B-12 can cause anemia and neurological disturbances....
Vitamin A is an important contributor to the health of various tissues, including the skin, bones, teeth and mucous membranes. This vitamin, also known as retinol, is of great importance to the formation of pigment in the retina, which is...
A cortical stroke occurs when the blood supply to the outside, or cortex, of the brain is reduced or blocked, which results in brain damage. The National Institute of Neurological Disorders and Strokes states that the cortex is the main processing...
The International League Against Epilepsy and the International Bureau for Epilepsy describe epileptic seizures as the evident symptomology of abnormal and overactive brain activity. The Epilepsy Foundation states that the cause of 70 percent of...
A cataract is a clouding of the lens in the eye. The lens, found behind the iris and the pupil, focuses light on the back of the retina. Cataracts differ by type and cause. More than 50 percent of people over age 80 either have a cataract or have...
A cataract is a clouding of the lens of the eye, caused by proteins on the surface. Under normal circumstances, the proteins in the lens allow light to pass through. As we age, the proteins clump together and cloud an area of the lens. Damage and...
Cataracts afflict 22 million Americans age 40 and above, according to the American Academy of Ophthalmology, and by age 80, more than half of all Americans will have cataracts. It is believed that eating green leafy vegetables, fruits and other...
