'Yo-yo' Weight Loss Linked To Decline In Muscle Mass

Middle-aged folks have a higher risk of muscle loss if their weight “yo-yos” due to inconsistent dieting, a new study says.

People who repeatedly dropped and regained weight wound up losing nearly four times as much thigh muscle during a four-year period compared to others whose weight remained relatively steady, researchers re...

FDA Advisers Dismiss Safety Warnings, Back Four Peptide Treatments

A panel of outside advisers to the U.S. Food and Drug Administration (FDA) voted Thursday to let specialized pharmacies produce and sell four peptide treatments the agency banned three years ago.

The votes are nonbinding, but they amount to a rebuke of the FDA’s own scientists who said the drugs have not been studied enough to know w...

Frequent Marijuana Use Linked To Higher Stress Hormone Levels

Marijuana may help you unwind — but using it too often could have the opposite effect on your stress response.

Researchers say adults who use pot frequently wake up with higher levels of cortisol, also known as the "stress hormone."

The body releases cortisol when you're under pressure to help regulate blood pressure, blood sug...

Money Problems Might Make Your Brain Old Before Its Time, Study Suggests

Being cash-strapped certainly frays your nerves, but it might also accelerate brain aging, a new study says.

People who have persistent money struggles or low income as young adults tend to perform less well on cognitive tests by age 53, researchers reported July 23 in the journal Innovation in Aging.

Further, brain scans re...

Back Pain? Try Swimming, Study Says

Suffering from low back pain?

A few laps in the swimming pool might help, a new study says.

An eight-week swimming program significantly improved function and pain among a group of people with back problems, researchers reported recently in the British Journal of Sports Medicine.

“They improved by about 50% from ...