(HealthDay News) -- Fainting can occur for a number of reasons, from feeling terror to being dehydrated, a state in which the body does not have as much fluid or water as it should. In some instances, fainting requires emergency medical attention.

(HealthDay News) -- Though fair skin may simply be a sign that you protect your skin from the sun, paleness may indicate a health problem that needs to be addressed.

MONDAY, April 25 (HealthDay News) -- A new study suggests that it's possible to predict future mood swings in bipolar people by monitoring their thoughts and behavior.

MONDAY, April 25 (HealthDay News) -- Some college students felt real distress when their favorite television shows went into reruns during the TV writers' strike of 2007-2008, a new report suggests.

MONDAY, April 25 (HealthDay News) -- Music lessons may help keep the brain healthy as people grow older, a new study suggests.

MONDAY, April 25 (HealthDay News) -- New research suggests that mindfulness meditation can help relieve pain and improve memory by regulating a brain wave known as the alpha rhythm, which "turns down the volume" on distractions.

MONDAY, April 25 (HealthDay News) -- Acupuncture might help reduce the hot flashes that frequently affect prostate cancer patients while they're on hormone therapy, a small study suggests.

MONDAY, April 25 (HealthDay News) -- The U.S. chemical management policy needs an overhaul because it does not adequately protect children and pregnant women, who are most susceptible to hazardous substances, a new position paper from the American Academy of Pediatrics claims.

MONDAY, April 25 (HealthDay News) -- A program promoting exercise and other healthy lifestyle habits that can help prevent chronic disease proved effective for black American couples in which one partner has HIV and the other does not, a new study finds.

MONDAY, April 25 (HealthDay News) -- Elementary school children who were victims of peer bullying -- along with the bullies themselves -- made more frequent visits to a school nurse's office with complaints of physical illnesses and injuries than their other classmates, according to new research out of Kansas.

MONDAY, April 25 (HealthDay News) -- A new study suggests that the ability of IQ tests to predict your future -- in areas such as job success, education and any brushes with the law -- has a lot to do with how motivated you are when you take the test.

MONDAY, April 25 (HealthDay News) -- Elderly Americans are at high risk for high blood pressure and related health problems and death, but lifestyle changes and proper use of medicines can reduce these risks, says a clinical guidance statement released Monday by the American Heart Association and the American College of Cardiology.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

MONDAY, April 25 (HealthDay News) -- Countries and U.S. states that report the greatest number of satisfied inhabitants also report the highest suicide rates, new British research indicates.

MONDAY, April 25 (HealthDay News) -- Most Americans have heard that red wine has health benefits, but many don't understand the need to limit consumption, finds an American Heart Association survey.

MONDAY, April 25 (HealthDay News) -- Use of the Menactra vaccine has been expanded by the U.S. Food and Drug Administration to prevent meningitis and other forms of meningococcal disease in children as young as 9 months, the agency said in a news release.

MONDAY, April 25 (HealthDay News) -- The ancient Chinese exercise of Tai chi may improve quality of life for people suffering from heart failure, Harvard researchers report.

MONDAY, April 25 (HealthDay News) -- Although the death rate among Americans with high blood pressure, or hypertension, has fallen since the 1970s, it still far exceeds the death rate for those with normal blood pressure, new research finds.

MONDAY, April 25 (HealthDay News) -- Common over-the-counter painkillers such as ibuprofen, aspirin and naproxen may reduce the effectiveness of antidepressants called selective serotonin reuptake inhibitors, or SSRIs, according to a mouse and human study from The Rockefeller University in New York City.

MONDAY, April 25 (HealthDay News) -- High levels of heart-healthy omega-3 fatty acids in the blood may be associated with an increased risk for developing aggressive prostate cancer, while elevated levels of unhealthy trans-fatty acids may lower the risk, a new study suggests.