Up to 10 percent of breast cancer cases are thought to be hereditary, caused by gene changes passed on in families.

Markéta Vondroušová is facing a four-year ban from tennis for refusing a doping test. Mike Egerton / PA Images via Getty Images Editor’s note: This explainer has been updated on July 31, 2026, ...

You wake up with a scratchy throat, runny nose, and persistent cough, but your at-home COVID-19 test reads negative. How is this possible? The short answer is yes—you can still be infected. Many other ...

Cologuard is a colon cancer screening test you can do at home. It’s a noninvasive, stool-based test that comes in a kit. You use the kit to collect a stool sample. Then you send the sample to a lab ...

You might be using an unsupported or outdated browser. To get the best possible experience please use the latest version of Chrome, Firefox, Safari, or Microsoft Edge ...

Social media use can lead to low quality sleep and harm mental health. It has associations with depression, anxiety, and low self-esteem. Positive effects of social media use can include connecting ...