First it was Microsoft cofounder Bill Gates, who got the Internet all fired up when he answered questions in a Reddit AskMeAnything thread. I am in the camp that is concerned about super intelligence, Gates wrote in response to a question about the existential threat posed by artificial intelligence (AI). First, the machines will do a lot of jobs for us and not be super intelligent.
A normal heart rate is between 60-100 beats per minute at rest (sitting, relaxing, etc.). It is well-known that the average resting heart rate for well-trained athletes is 40-60 beats per minute! However, this rate can change dramatically while sleeping or with daily activity and exercise.
For most adults, normal heart rate is 60 to 80 BPM. Well-trained athletes can have a normal heart rate of 40 to 60 BPM. When you work out, your heart rate will get higher. This is called your active heart rate. Active heart rates, like resting heart rates, differ in people and change as you age. Generally, a healthy active heart rate is 60 to 80 percent of your maximum heart rate, or the highest your heart rate should safely go.