age

Is That Exercise Right for Your Age?

April 10, 2017

If you’re in your 20s, you should be able to run 5K in 30 minutes and complete 20 burpees in a row. That’s according to a fitness checklist devised by Virgin Active, [...]

A New Clue to Why Women Outlive Men

June 21, 2016

A new study offers a possible clue to why women outlive men. The researchers found that specialized immune cells called natural killer, or NK, cells were present in equal [...]