A person who is exercising vigorously breathes more deeply and rapidly than someone who is restingGive two reasons why this is necessary?

Answer 1

well I think this is so, because our body need more oxygen than it does, when we are sleeping or relaxing, this is so because our lungs and muscles that lift the the ribs are tired and need oxygen to keep them going. Just a guess, nothing much! Peace!

Answer 2

when you run or exercise your body burns more sugar, so it needs to create more sugar. When you make sugar your heart beats faster to create more sugar. Your tempo in your body speeds up because it needs to work harder to make sugar. The process speeds up to make sugar, which needs oxygen.

Answer 3

A person who is exercising vigorously breathes more deeply and rapidly than someone who is resting because the exercising person's body is burning oxygen more rapidly than the resting person. The exercising person is also using more oxygen in a shorter period of time than the resting person by depleting oxygen from muscle cells.