Emily Cooke

New research suggests that people who are exposed to higher levels of air pollution and extreme temperatures during pregnancy have longer pregnancies than people who are not exposed to these conditions.

Creutzfeldt-Jakob disease is an extremely rare and fatal brain-wasting disease that's like a human version of "mad cow."

A new study has revealed that, during sex, male and female partners leave unique microbial "imprints" on each other, even when they use a condom.

A woman's contraceptive implant ended up in her lung; doctors believe the device migrated because it wasn't inserted in her upper arm properly.

A new virus related to the deadly Nipah and Hendra viruses has been detected in shrews in the U.S. However, scientists say there is currently "no evidence" that it has infected humans and the risk of it doing so is "likely low."

LIG4 syndrome is an exceptionally rare disorder caused by a genetic mutation that prevents the body from repairing damaged DNA.

Neurons found in one of the oldest regions of the brain may control when we stop eating a meal, new research in mice hints.

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry.

A nasal spray that contains esketamine — a potent derivative of ketamine — can now be taken on its own to treat adults with severe depression, the FDA says. Here's what that means.

Alkaptonuria is an unusual disorder caused by a defect in protein metabolism.

Exposure to low temperatures for prolonged spells can trigger an array of different health conditions, some of which may be life-threatening.

Eight months spent following a "carnivore diet" caused a man to grow big, yellow bumps on his hands, feet and elbows.

Capnocytophaga infections in humans are rare, especially in historically healthy individuals, but when it occurs, the disease can be deadly.

The FDA has given marketing authorization to Zyn nicotine pouches. That doesn't necessarily mean they're safe to use, especially for young people, and experts say there's little evidence that they help adults quit smoking.

A large new study has shed light on the wider health impacts of taking Ozempic-style drugs.

Parents are more likely to favor daughters and more-agreeable children, new research suggests, although the findings may only apply to people from certain demographics.

Experts lay bare the health effects of breathing in wildfire smoke and the steps that can be taken to reduce one's risk.

Argyria is caused by a buildup of silver in the body, which discolors the skin.

A new mega-database of half a million mutations may flag new ways of treating genetic disease, scientists say.

The newborn had a birth defect that left a gap in his lower spine, through which tissue pushed out and formed a giant, red, balloon-like structure.

Tularemia, or "rabbit fever," is an infectious disease that normally affects animals but can spread to humans, sometimes via tick and deer fly bites.

In a rare medical case, a woman in her 70s was hospitalized with heat stroke after stretching in a sauna for 45 minutes.

A new study in mice suggests that sleeping pills may impede the brain's ability to "cleanse" itself during sleep.

Situs inversus is a rare genetic condition that causes the organs in the chest and abdomen to be located on the opposite side from where they're usually found, like a mirror image.