An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although ...

Scientists published more than three dozen papers as part of the Human Cell Atlas, an effort to map the human body cell by cell. When you purchase through links on our site, we may earn an affiliate ...

A boundary is emerging for the most seasoned endurance athletes. Beyond apparent performances and records, their bodies seem to obey a fundamental biological law that regulates long-term ...

Death is not a singular moment, but rather a process that marks the body's transition from life to the unknown. While the image of death is often portrayed as sudden, especially in cases of cardiac ...

For the third weekend in a row, large swaths of the United States have wilted under early-season heatwaves that have set high temperature records from California to Texas. Nearly 100 million Americans ...