Your heart changes in size and shape with exercise – this can lead to heart problems for some athletes and gym rats

Exercise has long been recognized by clinicians, scientists and public health officials as an important way to maintain health throughout a person’s lifespan. It improves overall fitness, helps build strong…

As heat records fall, how hot is too hot for the human body?

Extreme heat has been breaking records across Europe, Asia and North America, with millions of people sweltering in heat and humidity well above “normal” for days on end. Death Valley…