For example, after squeezing a finger, it may take longer than 3 seconds to refill with blood. Mobility: A person may have some difficulty moving the fingers. Pain: Severe pain in the hands and ...

So, for example, in a person weighing 120 lbs. (54 kilograms), blood takes up about 9.6 to 12 lbs. (4.4 to 5.4 kg). You may like The human heart: Facts about the body's hardest-working muscle ...

Veins typically contain around 70% of blood in the body at any one time. Venules are the smallest type of vein. They have very thin walls to hold lots of blood.

Blood is naturally slightly alkaline or basic. Here’s what that means. The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH ...

A sedentary lifestyle can cause an impairment of the transport of blood around the body, which increases the risk of disease in the heart and blood vessels. New research suggests that performing ...

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

One organ in a person’s body can age faster than the ... as defined by the levels of certain proteins in the blood. Around one-fifth of the more than 5,600 people who ... For example, roughly 2% ...