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.
1. Myth: A normal heart rate is 60-100 beats per minute. That's the old standard. Many doctors think it should be lower. About 50-70 beats per minute is ideal, says Suzanne Steinbaum, MD, director of women's heart health at Lenox Hill Hospital. Recent studies suggest a heart rate higher than 76 beats per minute when you're resting may be linked to a higher risk of heart attack. The better shape you're in, the slower your heart rate will be when you're not moving around.