Every day, your heart tirelessly pumps blood through ... the goal is to improve lifestyle in order to improve blood pressure and circulation as naturally as possible. Medications are there to ...

The human heart is a vital organ that pumps blood through the body. You probably don't even think about it, but your heart is always working — it beats about 100,000 times a day, which adds up ...

Its heart pumps oxygen rich blood ... mammals who need to circulate lots of oxygen in order to keep up their active lifestyles. Fish have a circulatory systems with just one circuit.