Parkinson's disease is a disorder of the central nervous system that causes a loss of cells in the part of the brain that controls movement. People with Parkinson’s disease experience a range of symptoms, including tremor (shaking), rigidity (stiffness), slowness of movement, and problems with balance and coordination. They may also have memory problems, depression, and sleep complaints.
The statistics are alarming: About 65% of Americans are now overweight or obese, according to the Centers for Disease Control and Prevention. The number of obese adults (those with a Body Mass Index of 30 or more) jumped from 15% in 1980 to 27% in 1999. More than 15% of children from 6 to 19 years were overweight in 2000, which is three times higher than in 1980.
More than 85% of mammalian species are polyphasic sleepers, meaning that they sleep for short periods throughout the day. Humans are part of the minority of monophasic sleepers, meaning that our days are divided into two distinct periods, one for sleep and one for wakefulness. It is not clear that this is the natural sleep pattern of humans. Young children and elderly persons nap, for example, and napping is a very important aspect of many cultures.
Multiple Sclerosis (MS) is a disorder in which the body's immune system attacks and destroys myelin, a membrane that covers axons in the brain and spinal cord. Myelin serves both to protect axons and to speed the conduction of electrical impulses along nerve fibers. The destruction of myelin results in scarring and loss of nerve cells and can lead to a whole host of symptoms for MS patients, including paralysis, depression, loss of memory, fatigue and problems with vision, balance, bladder and bowel control.
Menopause is a time of major hormonal, physical and psychological change for women although menopausal symptoms vary from woman to woman. During the perimenopause or transition phase, a woman's ovaries gradually (over several years) decrease production of estrogen and progesterone. If a woman has her ovaries surgically removed (oophorectomy), periods end abruptly and menopausal symptoms become more severe. One year after menstrual periods have stopped, a woman reaches menopause, on average around the age of 50.
The pattern of waking during the day when it is light and sleeping at night when it is dark is a natural part of human life. Only recently have scientists begun to understand the alternating cycle of sleep and waking, and how it is related to daylight and darkness.
Whether you're a "Road Warrior" who has piled up thousands of Frequent Flier Miles, or someone who is planning a vacation to a distant location, you are likely to experience the phenomenon of "jet lag," which can have a profound effect on your sleep and alertness. Every day, millions of travelers struggle against one of the most common sleep disorders — jet lag.
GERD, also known as acid reflux, is an acronym that stands for gastroesophageal reflux disease. It is a chronic illness that affects 5-7% of the world population and is associated with serious medical complications if untreated. GERD is the 3rd most common gastrointestinal disorder in the U.S. Most patients with GERD also experience nighttime heartburn, which is more bothersome.
Have you ever wondered why some foods make you feel sleepy while others give you a lift? Do you sometimes find yourself dozing off after a big meal or reaching for a sugary snack when you’re tired? In addition to giving us nourishment, the things we eat and drink can pick us up or slow us down.
Your eyelids droop and your head starts to nod. Yawning becomes almost constant and your vision seems blurry. You blink hard, focus your eyes and suddenly realize that you’ve veered onto the shoulder or into oncoming traffic for a moment and quickly straighten the wheel. This time you were lucky; next time you could become the latest victim of the tragedy of drowsy driving.