Study: does exercise provide protection from infection?

Research says yes, but runners should be careful not to over-do it

Can probiotics prevent post-marathon sickness?

Recent research suggests taking a probiotic supplement can reduce your chances of getting post-race sniffles

Running and COVID-19: Why runners should take a vitamin D supplement

New research is showing a link between vitamin D deficiency and severe COVID-19 infections. What does this mean for runners?