WEDNESDAY, Sept. 17 (HealthDay News) -- About 20 percent of intensive care unit survivors experience symptoms of post-traumatic stress disorder.

That's the conclusion of a study by researchers who reviewed data from 15 previous studies that included 1,745 former ICU patients in the United States and a number of European countries.

FRIDAY, Aug. 1 (HealthDay News) -- Scientists have long observed a link between depression and heart disease. Now there's research to help pinpoint the symptoms of depression that may signal cardiovascular trouble.

A study suggests that people who suffer from depression, especially certain physical symptoms such as loss of appetite, sleep problems or fatigue, may be at risk of developing heart disease.

For the more than half of all Americans over age 59 who complain about not being able to fall asleep easily, the answer may rest with a 2,000 year old Chinese series of movements.

Researchers from the University of California at Los Angeles found that the 19 moves and one pose found in tai chi chih -- the Western version of the ancient philosophy that combines movements and poses to relieve stress and find spiritual fulfillment -- actually allowed study subjects to improve their sleep patterns.

(HealthDay News) - Gastroesophageal reflux disease (GERD) can cause symptoms during the night that can prevent a good night's sleep.

The National Sleep Foundation offers these suggestions to keep GERD symptoms calm at night:

* Be careful of the foods you eat from late afternoon until bedtime. Try to avoid spicy foods, onions and chocolate.
* Eat a larger meal at lunch, and have a small, light dinner.
* Don't eat anything after two or three hours before you plan to go to bed.
* Don't drink alcohol or smoke before bed.