Why Would Someone's Heart Rate Drop Below 50?

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2 Answers

Florent Lefortier Profile
Having a heartbeat of under 60 beats per minute is actually a medical condition called “bradycardia” (derived from the Greek for “heart slowness”).

Bradycardia can be quite dangerous, as it prevents oxygen from getting around the body quickly enough.

People with bradycardia may notice some of the following symptoms:

  • Dizziness
  • Shortness of breath
  • Heart palpitations
  • Fainting
  • Fatigue
  • Weakness
  • Chest pains
It’s very important that you get this checked out with your doctor.

Bradycardia and Health
Although bradycardia can be quite dangerous, it’s also quite common among professional athletes and young, healthy people.

If no other symptoms are experienced, and the individual is perfectly healthy, then bradycardia is something to be monitored, but not to worry about. It might just be an obscure sign that you're in great physical condition!

Causes of Slow Pulse
A low heart-rate can be caused by several things:

  • Beta-blocker medicines
  • Benzodiazepine overdose
  • Pain (although this can also cause high heart-rate!)
  • Hypoxia
  • Heart defects
  • Old age
  • Hypothermia
  • Hypothyroidism

If your heart-rate is below 50, it's definitely worth getting your doctor to make sure everything's working as it should. You might be perfectly healthy, but it's better to be safe than sorry!


Lowest Recorded Heart-Rate
Professional cyclist Miguel Indurain has the lowest heart-rate on record - only 28 beats per minute! This is partly due to his excellent health and fitness levels, and partly to his genetic make-up.
Muhammad Nadeem Profile
Muhammad Nadeem answered
The condition of having a heart rate below 60 is called "bradycardia". This condition can be normal in some well-developed athletes but abnormal in non-athletes. Following are reasons of low heart rate.

  1. Complication of heart attack
  2. Congenital heart defects
  3. Use of beta blockers and calcium channel blockers
  4. High blood-pressure
  5. Aging
  6. Hypothyroidism
  7. Electrolyte imbalance
  8. Obstructive sleep apnea
  9. Lupus
  10. Rheumatic fever
With proper treatment, this condition can be managed.

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