Long-Term Melatonin Might Harm Heart Health, Study Says

Folks using melatonin supplements as a sleep aid might be putting themselves at risk for future heart problems, a new study says.

Adults with insomnia who’d been using melatonin for a year or more had 90% higher odds of heart failure, researchers are scheduled to report Nov. 10 in New Orleans at a meeting of the American Heart Associ...

Three-Pronged Blood Test Highlights Heart Attack Risk

A new three-pronged blood test can highlight people with a nearly tripled risk for heart attack, a new study says.

The test relies on three blood markers linked to heart disease: lipoprotein a [Lp(a)], remnant cholesterol and high-sensitivity C-reactive protein [hsCRP], researchers are slated to report at a Nov. 10 meeting of the American ...

Light Pollution Harming Heart Health, Study Says

The bright lights of the big city might seem dazzling, but they can be hard on your heart health, a new study says.

People exposed to high levels of artificial light have an increasingly higher risk of heart disease, researchers are scheduled to report at a Nov. 10 meeting of the American Heart Association in New Orleans.

Higher expo...

Device Provides 'Smart Toilet' Feedback On Health

A new “smart toilet” device aims to help people track their health by analyzing their bathroom trips.

The Dekoda device clamps around the rim of any standard toilet, where it uses advanced sensors to scan a person’s waste, says its manufacturer, Kohler Health.

With this data, folks can monitor their hydration and gu...

Study Finds Surprising Link Between Gut and Brain Rhythms

The human body is packed with natural rhythms, from your sleep-wake cycle to the steady pulsing of blood through the brain to heart rate and pulse. 

Now, scientists say the gut may hold the key to understanding how this complex coordination happens in the brain’s blood vessels.

Researchers at the University of California S...

Scientists Find the Genetic Clues That Let Humans Walk on Two Legs

Two small changes in human DNA may have played a big role in helping our ancestors walk upright, researchers say.

The study, recently published in the journal Nature, found that these tweaks changed how a key hip bone developed.

This allowed early humans to stand, balance and walk on two legs instead of moving on all fours l...