What Happens When You Exercise With a Mask?
Masks are commonly worn to halt the spread of infectious disease. But, should they be worn when your body needs more oxygen? There may be a better option.
STORY AT-A-GLANCE
Some have found that wearing a mask while exercising reduces your oxygen intake and drives CO2 levels high
Symptoms of high CO2 levels include headache, dizziness, fatigue, poor concentration and nausea; two schoolboys in China died while running with a mask
The question of whether cloth masks are effective against the spread of infectiou…
Keep reading with a 7-day free trial
Subscribe to Dr. Mercola's Censored Library (Private Membership) to keep reading this post and get 7 days of free access to the full post archives.