Heat therapy increases blood flow to a specific area and improves circulation. This is because heat on an inflamed area causes the blood vessels to dilate, promoting blood flow to the injured area. Applying heat to an affected area can provide comfort and increase muscle flexibility, as well as heal damaged tissue.

Does heat increase blood flow?

Why does HEAT help? Heat increases blood flow by expanding blood vessels. Increased blood flow can help relax a tight muscle, restore movement, and reduce pain. Heat eases stiffness after inflammation has resolved.

How does temperature affect blood flow?

Cold weather also puts immense strain on the heart. Low temperatures cause your blood vessels and arteries to narrow, restricting blood flow and reducing oxygen to the heart. Your heart must pump harder to circulate blood through the constricted blood vessels.