CNN Health

The U.S. Food and Drug Administration has deemed whole-body cryotherapy a sham -- and a risky one at that. In a new consumer update, the federal agency warns of the dangers of the "so-called 'treatment,' " offered at spas and wellness centers, that involves exposing one's legs, torso, and sometimes head to air chilled by liquid nitrogen to subzero temps (think -300 degrees).

The Centers for Disease Control and Prevention is collecting semen from hundreds of men in the United States to figure out how long the dreaded Zika virus lasts in the bodily fluid.

A recent study found that, when using social media, a teens' brain responds to 'likes' in a similar way to when they see loved ones, or win money.

When Robert Kugler's dog was diagnosed with terminal bone cancer, he decided to take her on the trip of a lifetime.

Thirty-three people suspected of overdosing on K2, a type of synthetic marijuana, collapsed on the sidewalk in Brooklyn over an 11 hour period on Tuesday.

Black police officers weigh in on recent shootings, and offer solutions.

In the past six months, Cassidy and Chad Lexcen have been too busy to look at the Google Cardboard images that saved their baby's life.

Strengthening skills through play is a proven strategy. For kids with special needs, video games can offer opportunities to practice everything from communication to organization.

African-American public health leaders are calling on the CDC to break their silence on gun violence and recognize it as a public health crisis.

So remote and pristine are the Faroe Islands, a Danish country in the Norwegian sea, even Google Street view hasn't gotten there yet.

Yes, astronomers have discovered dark sand dunes on Mars that resemble Morse code. But no, they don't think little green men are trying to tell us something.

NASA's Juno mission to Jupiter has returned its first image after being sent into orbit last week.

Traveling to a different time zone can be very exciting. You are ready to explore and check items off your bucket list. Jet lag is probably the last thing you want to deal with.

So everyone is shuffling around furiously swiping at their phones and bragging about their Vaporeon and you're just sitting here like "What's a Pokéball?"

Although they never flew in space together, twins and retired astronauts Scott and Mark Kelly both understand why the other one misses viewing Earth as a big round ball in space from the window of a shuttle or the cupola of the International Space Station.

For the second time, scientists detected a feared "superbug" -- bacteria that cannot be killed by the best available drug for treating antibiotic-resistant infections --- in an American patient.

UGC 1382 is dubbed a Frankenstein galaxy because the inside and outside formed differently before merging -- a slow dance over billions of years.

A new dwarf planet has been discovered in the icy realms of space beyond Neptune, researchers said Monday.

A study of thousands of incidents where law enforcement interactions turned forceful found African Americans are 3.6 times likely to be targeted by police than others.