FRIDAY, Aug. 12 (HealthDay News) -- Texting, webcams and instant chat might seem like innovations best suited to passing along teenage gossip, but medical researchers are discovering their usefulness in helping people with psychological disorders.

(HealthDay News) -- It's common for a woman to become depressed during or just after a pregnancy. The timing and specific symptoms tend to vary by person.

(HealthDay News) -- Hemodialysis helps your body remove waste products when your kidneys don't function properly. People on dialysis usually need to limit fluid intake to prevent swelling, weight gain and possible heart trouble.

FRIDAY, Aug. 12 (HealthDay News) -- Standing water is a breeding ground for mosquitoes that can spread serious diseases such as the West Nile virus. Yet many urban families don't take simple steps such as dumping out standing water to reduce their risks, researchers say.

FRIDAY, Aug. 12 (HealthDay News) -- About 76 young U.S. athletes collapse and die from sudden cardiac arrest during practice or a game every year, which has led some experts to call for mandatory electrocardiograms to screen players for possibly fatal heart defects.

FRIDAY, Aug. 12 (HealthDay News) -- Listening to music or having sessions with trained music therapists can help ease cancer patients' anxiety, researchers say.

FRIDAY, Aug. 12 (HealthDay News) -- More doctors are performing weight-loss surgery today, and hospitals are touting better survival rates, a new study finds.

FRIDAY, Aug. 12 (HealthDay News) -- Religious people outnumber and are happier than atheists in societies facing hardship or conflict, a new study indicates.

FRIDAY, Aug. 12 (HealthDay News) -- Monthly premiums for individual health insurance average $215 a person in the United States, but vary widely from state to state, a new report says.

FRIDAY, Aug. 12 (HealthDay News) -- Obstructive sleep apnea (OSA) and sleepiness rapidly return when patients stop using continuous positive airway pressure (CPAP) machines, a new study finds.

FRIDAY, Aug. 12 (HealthDay News) -- Patients who take antipsychotic medications aren't being adequately monitored for dangerous health complications, researchers have found.

FRIDAY, Aug. 12 (HealthDay News) -- Although being physically active is one of the best ways people with osteoarthritis can alleviate pain and improve their ability to get around, a new study shows that people with the joint disease are much more sedentary than previously thought.

FRIDAY, Aug. 12 (HealthDay News) -- Dogs can teach children about responsibility, shower them with love and maybe even help them maintain their reading skills.

FRIDAY, Aug. 12 (HealthDay News) -- New research finds that men who undergo prostate removal often suffer more from incontinence and impotence than they expected, even when counseled beforehand about possible aftereffects.

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

FRIDAY, Aug. 12 (HealthDay News) -- The U.S. Department of Health and Human Services (HHS) and the U.S. Treasury Department today awarded $185 million to 13 states and the District of Columbia to speed up creation of Affordable Insurance Exchanges -- a cornerstone of President Obama's health care reform -- across the country.

FRIDAY, Aug. 12 (HealthDay News) -- Health problems linked to the World Trade Center attacks may be spurring an increase in retirements for New York City firefighters, a new study suggests.

FRIDAY, Aug. 12 (HealthDay News) -- In a 2-1 decision, a panel of three judges with the 11th Circuit Court of Appeals on Friday struck down the controversial "individual mandate" rule in the health care reform package.