Animal lifespan is a billion heart beats

The North Carolina State University Heart Project studied 322 species of animals and concluded that animals get about a billion heartbeats per lifetime. Humans get the most heartbeats per lifetime, about 2.5 billion.

Human athletes have slower resting heart rates, which likely correlates with longevity. Caffeine makes our hearts beat faster––I wonder how many years it’s shaving off.


Published by Neal Mueller