Developing COVID vaccines that are easy to make and have long shelf lives is critical to controlling the pandemic. A new gene-based candidate shows promise in the lab.

For hundreds of years, people have observed that asthma severity often worsens at night. A new study looks at why.

Are emoji just cute? Or can they provide an effective way for patients and doctors to communicate?

Until recently, people seeking hormone-free birth control found few options available. Here's how one new product works.