Harvard Heart Letter

Ask the doctor: Is swimming in cold water okay for my heart?

I love to swim in the ocean for 20 or 30 minutes. The water is cold (55° F) but I don't mind. I'm almost 80. I had my mitral valve repaired five years ago, and my heart rate is sometimes irregular. Are my cold-water swims okay for my heart?
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 »