Surprisingly, though, an AARP-sponsored poll suggests people are starting to settle on a number to define old.. In 1974, nearly half of those polled said that age depends on a person's health or some other factor. By 2004, only 5 percent said that. People now believe old age sets in between 60 and 69, the results showed. Some might argue senior and old are totally different terms.
Hearing a heartbeat in your ears can indicate a hardening of the blood vessels in the neck. In this video, Dave Salley, MD, an ear, nose and throat specialist at Chippenham & Johnston-Willis Hospitals, discusses what other noises you might hear, and what they mean.
The normal heart rate is between 60 and 100 beats per minute. If the sinus node is without nerves (for example a transplanted heart) the heart rate is about 80 beats per minute. Two types of nerves regulate the heart rate. The sympathetic nerve speeds up the heart rate with exertion or excitement. The vagal nerves slow the heart rate.