Mack Horton

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Swimmer thanks fan who raised alarm over mole

Australian Olympic gold medalist Mack Horton has paid tribute to a fan who spotted a suspicious mole on the swimmer's chest and urged him to get it checked out.



Colorado marijuana's potency five times US average

More than two years after Colorado began selling marijuana for recreational use, cannabis consumers have access to pot that is more potent than ever.

Headache file


How your mouth is linked to your migraines

Your vision starts to blur. You see flashing lights. You feel that familiar throbbing pain in your head grow stronger and stronger.

Storm - California3

Wanda Gemson/via CNN iReport

Researchers: We are 'risk-stupid''

Most of us are aware of these and other risks in our lives. Yet we are terrible at estimating how likely we are to be affected by them.

Wedding gift


Bride loses 100+ lbs after engagement wake-up call

What would it take for you to change your life? For Texas woman Haley Smith, a single joyful moment became a wake-up call.

nose 2


Surgeons use nose cells to repair knee joints

Swiss surgeons successfully used an experimental technique, which includes harvesting cells from the nasal septum, to repair damaged knee joints in patients.…

Baby born twice

Courtesy Paul Vincent Kuntz via CNN

Meet the baby who was born twice

Margaret Boemer went for a routine ultrasound 16 weeks into her pregnancy with her third child. She quickly found out that things were far from routine.

HIV test

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STD rates reach record high in United States

There were more reported cases of sexually transmitted diseases last year than ever before in the United States, according to the latest STD surveillance…

Zika mosquito


CDC advises pregnant women who visited Miami-Dade

Pregnant women who have "lived in, traveled to, or had unprotected sex with someone who lived in or traveled to Miami-Dade County" since August 1 should be…

head scan, brain

freeimage.scom/Max Brown

Do brain-training exercises really work?

A battle has been brewing over whether brain training really works, leaving consumers stuck in the middle, scratching their heads.

Many experts believe that…

Women's health file

New treatment may help cool hot flashes

Hope may be on the horizon for the more than 70% of women who suffer hot flashes.



Anti-inflammatory drugs might someday treat depression

Though it's still too early to prescribe these drugs to depressed patients, researchers believe that anti-inflammatory drugs may offer hope to people who find…

Charles River

Jodi Hilton/Getty Images

Boston's once-toxic river flows to your beer mug

Would you drink a beer originating in what used to be one of the most polluted rivers in the country?

In early August, Newton, Massachusetts-based water…

Bald man


Can a pill used for arthritis grow hair?

In his mid 40s, Mike Thomas went almost totally and completely bald. But a pill he took for a common condition may have helped his hair grow back.

Plastic cup

David Paul Morris/Getty Images

Researcher: Chemical toxicity costs US $340 billion per year

Routine contact with plastic bottles, toys, food cans, cosmetics and flame retardants containing "endocrine-disrupting chemicals" results in ingestion, leading…