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.
Put your head on someone's chest and the heartbeat sounds a bit like lub-DUB, lub-DUB, lub-DUB. The lub is the sound of the tricuspid and mitral valves closing. The DUB is the sound of the aortic and pulmonary valves closing. Together, they're the sound of someone's heart doing its job.