DUBLIN, Ireland -- A doctor based in Dublin, Ireland, has debunked the idea that a face mask lowers oxygen levels. In fact, he's shown that even wearing several has no effect.This video shows Maitiu O Tuathail putting six masks on his face while recording his blood oxygen saturation levels.As he puts on mask after mask,…
DUBLIN, Ireland -- A doctor based in Dublin, Ireland, has debunked the idea that a face mask lowers oxygen levels. In fact, he's shown that even wearing several has no effect.This video shows Maitiu O Tuathail putting six masks on his face while recording his blood oxygen saturation levels.As he puts on mask after mask,…
If you stride through the gym straight to the dumbbell rack, grab the first set of weights you see and immediately get to curling, your biceps-building workout is probably too rushed. To really emphasize the exercise's full range of motion and muscle contraction, through which you'll reap the most muscle-building benefit, you need to focus
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