I get early beats when i have caffeine or when i don't get enough sleep. i run a lot and don't feel them then. but they are often. is this dangerous?

Extrasystoles: Are usually benign. You may want to decrease your caffeine intake and try to adhere to a sleep routine. Exercise is great and should help with your sleep.

Not necessarily: Irregular beats in an athletic, otherwise healthy person can usually just me monitored. See your doctor to make sure there is not a heart rhythm abnormality and for more advice on healthy heart practices, including proper diet, exercise and sleep.

Probably Not: Isolated early beats or PVCs can occur under a number of circumstances; Caffeine, low blood potassium, anxiety, stress etc.. If the symptoms occur more frequently or if you have dizziness, weakness, shortness of breath, you should be evaluated immediate. Avoid caffeine if you are having early beats. Caffeine is often added to sodas and energy drink and some medication, so read labels carefully.