Scientists discover that a new hormone produced by thymus gland tends to increase longevity.
It is completely natural to have an urge to go to bed when we get sick. Researchers have found that this urge has a definite purpose, at least in fruit flies. In fruit flies, sleep enhances their immune system response and recovery to infection, according to researchers.
Not having enough vitamin D may compromise the immune function of older individuals, according to a new study.
Red grapes and blueberries may help keep the body healthy and ready to fight infections, a new study suggests.