You need natural blood flow to the penis to have and maintain an erection. During an erection, arteries in the penis expand to increase blood flow. Muscle contractions then move the blood into ...
Cold weather tightens blood vessels, raising blood pressure and making the heart work harder. Shivering and reduced activity can also increase cholesterol. Here’s why taking care of your heart becomes ...
"This use-dependent increase in local blood flow (functional hyperemia), mediated by mechanisms collectively termed neurovascular coupling (NVC), is essential for normal brain function and ...