Health Tip: Does Asthma Affect Your Sleep?

(HealthDay News) -- Asthma can affect your sleep, as symptoms often worsen at night.

Health Tip: Care for Your Mouthguard

(HealthDay News) -- A mouthguard helps prevent damage to your teeth and mouth during sports or other physical activity.

People Overestimate the Happiness New Purchases Will Bring

FRIDAY, Jan. 25 (HealthDay News) -- They say money can't buy happiness, and a new study suggests that's true for even the most materialistic.

Very Obese Teens See Heart Gains From Weight-Loss Surgery: Study

FRIDAY, Jan. 25 (HealthDay News) -- Weight-loss surgery in extremely obese teens helps reverse heart abnormalities thought to be associated with severe obesity, a small new study finds.

People May Eat More When Headlines Bear Bad News

FRIDAY, Jan. 25 (HealthDay News) -- Tough economic times can lead people to eat much more than they normally would, a recent study finds.

Folic Acid Supplements Don't Affect Cancer Risk, Review Finds

FRIDAY, Jan. 25 (HealthDay News) -- Folic acid supplements do not affect people's risk for cancer, according to a large new review.

Could Lightning Spur Headaches and Migraines?

FRIDAY, Jan. 25 (HealthDay News) -- Lightning is associated with an increased risk of headaches and migraines, a new study suggests.

Common Painkillers Tied to Kidney Risks for Children: Study

FRIDAY, Jan. 25 (HealthDay News) -- Children taking the common painkillers known as nonsteroidal anti-inflammatory drugs may be at risk for acute kidney damage, particularly when the kids are dehydrated, a new study finds.

Health Highlights: Jan. 25, 2013

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

Bisexual Women at Especially High Risk of Sexual Violence, CDC Says

FRIDAY, Jan. 25 (HealthDay News) -- Bisexual women in the United States are more likely to suffer from domestic violence than either lesbian or heterosexual women, a new government report shows.

Flu Still at Epidemic Levels: CDC

FRIDAY, Jan. 25 (HealthDay News) -- While flu activity remains high across the United States, there are signs that the number of infections may be leveling off, federal health officials reported Friday.

1st OTC Drug Approved for Women With Overactive Bladder

FRIDAY, Jan. 25 (HealthDay News) -- The drug Oxytrol has been approved by the U.S. Food and Drug Administration as the first over-the-counter treatment for women 18 and older with overactive bladder.