Avoid caffeine, nicotine, cold medicines with pseudoephedrine, energy drinks, and stimulants such as cocaine or amphetamine. Reduce stress, get regular sleep, and exercise.

When to seek immediate medical care

See a doctor immediately if:

  • Dizziness or fainting
  • Chest pain or pressure
  • Shortness of breath
  • Heart rate under 45 beats per minute or over 120 at rest

When to make a doctor's appointment

Make an appointment to see a doctor if:

  • Symptom is new
  • Induced by exercise
  • Family history of sudden death or fainting

Last Updated May 26, 2018

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