Slow Down You Move Too Fast
There’s a natural law that states that animal metabolism is inversely related to size: big animals have a slow metabolism and live longer, while little animals live fast and die young. Regardless of size, the number of heartbeats for most mammals is about 1.5 billion in an entire lifetime. Graeme Quirk wonders about the value of exercise, given that animals have a limited number of heartbeats. Instead of exercising and increasing our pulse rates we might all be better relaxing on the couch, saving those precious beats!