Lincoln Wilson——Works at the World Wildlife Fund, Lives in Gland, Switzerland.
Tachycardia is a fast heart rate, defined as above 100 bpm at rest. Bradycardia is a slow heart rate, defined as below 60 bpm at rest. During sleep a slow heartbeat with rates around 40-C50 bpm is common and is considered normal.read more >>
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.