prev next front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |review
the efficiency of our lungs, heart, and vessels in delivering oxygen to our body tissues

Oxygen sustains us…. It is the fuel for metabolic reactions

Efficient delivery of oxygen allows our muscles, brain, and other tissues to work their best; aerobic exercise promotes this!