Why does it feel easier to perform strenuous tasks, such as lifting heavy objects, while holding our breath?

Question

Wouldn’t it make more sense to get as much oxygen to the brain as you could?

In: Biology

Answer 1

Just to answer your question about oxygen, your body actually uses next to no oxygen to lift a heavy object. You use something called anaerobic respiration which doesn’t use O2. You would on the other hand, want to breathe in as much as possible if you are lifting light things over and over