The internal clock of immune cells: Is the immune system younger in the morning?

As the immune system ages, it reacts more slowly to pathogens, vaccines become less effective, and the risk of cancer ...
Runner's World

Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high

Your heart rate is the number of times that your heart beats in a minute ... Again, if it’s low but you feel fine, you probably don’t need to worry. Due to physiological differences between the ...
The Associated Press

Disease of 1,000 faces shows how science is tackling immunity’s dark side

Doctor after doctor misdiagnosed or shrugged off Ruth Wilson’s rashes, swelling, fevers and severe pain for six years. She saved her life by begging for ...