Harvard Health Letter

By the way, doctor: Should I worry about this irregular heartbeat?

At 86, I'm still competitively racing frostbite dinghies. I've noticed that my heartbeat becomes irregular during the races and for hours afterward. It feels like a weak beat after every two normal heartbeats. Is this a normal exercise reaction?
To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »