Health Tip: Lactose May Be Hiding in Food

(HealthDay News) -- Lactose is an enzyme that is typically found in milk and other dairy foods. It's also added to many non-dairy products, which is bad news for people who can't digest the enzyme properly. The condition is known as lactose intolerance.

Health Tip: Teach Teens to Drive Defensively

(HealthDay News) -- Being a safe driver means learning to watch for potential road hazards.

Everyday Noise Levels May Affect the Heart

THURSDAY, May 9 (HealthDay News) -- Even the minor noise that fills everyday life, from the ring of a cell phone to the conversation that follows, may have short-term effects on heart function, a small new study suggests.

Wireless Pacemaker Shows Promise in Early Study

THURSDAY, May 9 (HealthDay News) -- Scientists report positive results in early testing of a wireless pacemaker that's placed in the heart instead of being connected to it via wires from the upper chest.

Eating Peppers Tied to Lower Parkinson's Risk, Study Finds

THURSDAY, May 9 (HealthDay News) -- Eating vegetables that naturally contain nicotine, such as peppers and tomatoes, may reduce your risk of developing Parkinson's disease, according to a new study.

iPads Could Affect Implanted Heart Devices, Early Study Finds

THURSDAY, May 9 (HealthDay News) -- Sprawled out on the couch, reading the news on your iPad, you'd never think you could be putting yourself at risk. But you might be, if you happen to have an implanted heart device.

Fatal Crashes Involving Cellphone Use May Be Under-Reported

THURSDAY, May 9 (HealthDay News) -- The number of fatal crashes involving drivers distracted by cellphones is vastly under-reported in the United States, according to a new study.

Pregnancy Adds Challenge for Teens Treated for Drug Abuse, Report Says

THURSDAY, May 9 (HealthDay News) -- Half of pregnant teens in substance-abuse treatment programs used alcohol or drugs in the month before they entered treatment. And nearly 20 percent used drugs or alcohol on a daily basis during that month, according to a U.S. government report.

Red Hair Pigment Might Raise Melanoma Risk: Study

THURSDAY, May 9 (HealthDay News) -- The red in redheads' hair is thought to put them at increased risk of the dangerous skin cancer melanoma, even if they don't spend a lot of time in the sun, according to a new study.

Swimming Pools May Pose Hazard for People With Heart Devices

THURSDAY, May 9 (HealthDay News) -- With summer approaching, researchers caution that swimming pools may pose a risk to patients with irregular heartbeats who've received implantable defibrillators.

Gene Discovery May Offer Breakthrough for Rare Leukemia

THURSDAY, May 9 (HealthDay News) -- In the war against cancer, it looks like matchmaking -- between genes and drugs -- could be an important tool, according to new research into the genetic underpinnings of two rare forms of leukemia.

Health Highlights: May 9, 2013

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