Increased physical activity can improve your circulation, which can in turn

Exercise affects the circulation throughout your entire body. From your brain to your heart and your limbs, exercising on a regular basis offers important cardiovascular benefits. Engaging in a fitness routine helps reduce the growth of plaque in your arteries, lowering the risk of cardiovascular disease. Moderate exercise offers the brain protection from forms of dementia. Keep your exercise regimen varied, addressing the circulation needs in each part of your body. Before beginning any physical fitness activity, check with your doctor.

Stimulants speed up the central nervous system.