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