Is it dangerous to have more than 40 heart beats?

The heart beats more than 40 times per minute whether there is a risk needs to be analyzed according to the situation, as follows:

the normal range of human heart beats is 60-100 times per minute, if the heart beats less than 60 times/minute, it is considered bradycardia. For people who exercise for a long time, this situation is measured when they are in sleep, considered to be normal, and there is no danger. It is due to long-term exercise to increase blood vessel wall tension, easy to appear low heart beat. If there is no long-term exercise history of the crowd, but also dizziness, vomiting, fatigue and weakness, consider dangerous, need to go to the hospital in time for treatment.