Hundreds of millions of people are turning to chatbots to help figure out what's wrong with them. Doctors say that's not ...

Your watch’s VO2 max isn’t perfect, but you can improve its accuracy with better data and heart-rate tracking.

Picture this: You've just finished your annual doctor's appointment. You feel good, and the routine tests your doctor ...

When CNN asked for your flu stories, we received hundreds of written responses from people stuck in bed, binge-watching TV, working from home and trying to keep their kids under control — all while ...

Do you know your horse racing lingo? If not, here are some terms you'll hear while watching the Kentucky Derby.

Every year, more than 350,000 people go into cardiac arrest outside of a hospital setting in the United States. CPR, or cardiopulmonary resuscitation, can help double or triple survival rates. In this ...

Your house could use a good burping.