T. Colin Campbell: Well, I mean really it should be a diet that is largely focused on plant-based foods, by that I mean vegetables and grains and fruits and legumes, of course, and in particular, sort of whole foods. I mean, we ought not to be taking (laughs), I mean plant foods are really the optimal diet.
Your working muscles can take oxygen out of the blood three times as well as your resting muscles. Your body has several ways to increase the flow of oxygen-rich blood to working muscle: 1  increased local blood flow to the working muscle. 2  diversion of blood flow from nonessential organs to the working muscle.3  increased flow of blood from the heart (cardiac output).our body has several ways to increase the flow of oxygen-rich blood to working muscle: 1  increased local blood flow to the working muscle. 2  diversion of blood flow from nonessential organs to the working muscle. 3  increased flow of blood from the heart (cardiac output).
A , Fitness, answered. To work at its best, the brain needs a constant supply of oxygen and glucose, which is carried to the brain by the blood. Because a constant supply of blood is so essential, the arteries supplying blood to the brain have the ability to narrow and widen as needed to ensure adequate oxygen and nourishment. Likewise, blood vessels within the brain widen and narrow to regulate the flow of blood to those areas of the brain working hardest.