Blood Transfusions May Cut Risk of 'Silent' Stroke in Kids With Sickle Cell

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Monthly blood transfusions may lower the chances of "silent" strokes in some children with sickle cell anemia, a new clinical trial indicates.

 High-Risk Melanomas Often on Head or Neck, Study Finds

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- The speed at which cancer cells grow may help doctors diagnose and treat the most aggressive melanomas, researchers say.

 Pigs' Hearts Beat for a Year in Baboons' Abdomens

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Pigs' hearts transplanted into baboons survived for more than a year, which is twice as long as previously achieved, researchers report.

 Exercise May Guard Against Irregular Heartbeat in Older Women

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Regular exercise may help older women avoid a condition that causes a life-threatening irregular heartbeat, a new study shows.

 Seniors' Sleep Woes May Be Linked to Loss of Brain Cells

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Loss of brain cells that act as a "sleep switch" may help explain why many seniors have trouble falling and staying asleep, a new study suggests.

 Many Women Who Have Mastectomy Don't Get Breast Reconstruction: Study

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Breast reconstruction after a mastectomy has long been an option, but a new study shows that only about 42 percent of women choose it.

 Study Ties Colds, Flu to Rare Risk of Stroke in Kids

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Although it's extremely rare, colds, flu and other minor infections might trigger a strong but brief period of elevated risk for stroke in children, a new study suggests.

 Botox Tested on Stomach Cancer in Mice

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Botox, the wrinkle fighter, might be a cancer fighter, too, according to a new animal study.

 Seals, Sea Lions Helped Global Spread of TB, Study Finds

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- New research reveals that, long ago, sea mammals may have played a role in the global spread of the infectious disease known as tuberculosis.

 Drug for Ebola-Like Virus Shows Promise in Monkeys

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- A new experimental drug has saved a group of rhesus monkeys from deadly Marburg virus, a very close cousin of Ebola virus that kills up to 90 percent of those it infects, researchers report.

 Tight Blood Pressure Control Doesn't Raise Risk of Falls, Study Says

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- A new study found no evidence to support the widely held belief that intensive treatment for high blood pressure increases patients' risk of falls and broken bones.

 Cerdelga Approved for Gaucher Disease

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Cerdelga (eliglustat) has been approved by the U.S. Food and Drug Administration to treat type 1 Gaucher disease, a rare inherited disorder caused by the body's insufficient production of a key enzyme.

 White Women More Likely to Seek Fertility Treatment: Report

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- White, straight women are much more likely to seek treatment for infertility than minority, bisexual or lesbian women, a new study finds.

 Health Highlights: Aug. 20, 2014

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

 Teen Birth Rate Has Dropped Dramatically in Last Two Decades: CDC

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- U.S. teen birth rates fell dramatically during the past two decades, plummeting 57 percent and saving taxpayers billions of dollars, a new government report shows.

 Want to Stay Slim? Leave the Car at Home

WEDNESDAY, Aug. 20, 2014 (HealthDay News) -- Leaving the car at home and getting to work by walking, cycling or public transit is good for your health, a new study indicates.

 Health Tip: Strengthening Your Brain

(HealthDay News) -- A healthy lifestyle can help keep your brain sharp as you age, preventing cognitive decline.

 Health Tip: Soothing Psoriasis on the Feet

(HealthDay News) -- Psoriasis causes red, itchy skin plaques that commonly affect the bottoms of the feet.