WASHINGTON - We're deep into cold and flu season, and you're likely reaching for any immune-boosting foods you can find.

Reboot your immune system with intermittent fasting. Help your ‘good’ bacteria to thrive with a plant-based diet. Move over morning coffee: mushroom tea could bolster your anticancer defences. Claims ...

As the body ages, so does the immune system. The immune system usually becomes less effective in older age, a process known as immunosenescence. This can increase the risk of: While you can’t prevent ...