THURSDAY, May 16 (HealthDay News) -- The tainted steroid injections linked to 55 recent U.S. deaths also caused many less lethal infections, more than half of them concentrated in Michigan, federal health officials reported Thursday.

THURSDAY, May 16 (HealthDay News) -- There are few things more inviting than a cool, clear pool on a hot summer day. But a new federal report will have you thinking twice before dipping a toe in the water.

THURSDAY, May 16 (HealthDay News) -- Men who are physically fit in middle age have a lower risk of developing and dying from certain cancers, new research indicates.

WEDNESDAY, May 15 (HealthDay News) -- People who are obese or out of shape in their 40s or 50s might think it's too late to start getting fit, but new research finds that shaping up in middle age lowers the odds for heart failure later in life.

WEDNESDAY, May 15 (HealthDay News) -- People who follow the ancient practice of yoga may be getting an added health boost, with a new study suggesting it can fight high blood pressure -- also known as hypertension.

(HealthDay News) -- Exercise is a good idea for anyone, but it poses special challenges for people with allergies and asthma.

SATURDAY, May 11 (HealthDay News) -- Spending more time in physical education classes helps students develop muscle strength and doesn't increase their risk of broken bones, a new study finds.

FRIDAY, May 10 (HealthDay News) -- Exercise won't exacerbate the pain associated with fibromyalgia, and it may actually improve it, a new study suggests.

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.

WEDNESDAY, May 8 (HealthDay News) -- A baseball pitched at more than 90 miles per hour or a tennis ball swatted at even greater speeds leaves opponents mere split-seconds to ready themselves for a savvy return. So how can the human brain track such small objects traveling at such high speeds?