Hemoglobin is an important part of your blood that helps deliver iron and oxygen to healthy tissues. It's made up of four protein molecules called globulin chains. Two are alpha globulin, and two are beta globulin chains. The normal hemoglobin values for adult men range from 14gm/dl to 18 gm/dl.

Your white blood cells are components in your immune system that actively seek out and fight various forms of infection. When you exercise, these cells increase their numbers and circulate more quickly through your body.

Humans breathe in oxygen and breathe out carbon dioxide. This process sounds simple, but the details are actually quite complex. During the process of breathing, humans convert sugar into energy. Carbon dioxide is a waste product of this process.

Proper circulation is essential for general health and well-being. Healthy arteries and blood vessels carry essential nutrients and oxygen to tissues and organs throughout the body. Certain natural supplements can strengthen blood vessels and promote healthy circulation.

Plasma is the liquid portion of the blood. This slightly yellow fluid is made up of 90 percent water, according to the Franklin Institute. Although often thought of as less important than the cells of the blood that carry oxygen and provide immunity, the plasma is equally important.

Anything that contains a liquid, including the bloodstream, has a measurable pH level. This level, which determines the potential of hydrogen reactions, or the presence of oxygen, can have significant impacts on the human body.

There are two major types of protein in your blood -- albumin and globulin. The majority of blood serum protein is albumin, manufactured by your liver and used for healing, tissue growth and to prevent blood from leaking out of your blood vessels.

White blood cells, or leukocytes, are the cells your body uses to fight off infections. There are different types of white blood cell, each responsible for fighting different microbes. For example, neutrophils help fight off bacterial infections, while lymphocytes increase during viral illnesses.

A low blood count, also known as anemia, is a lower than usual number of red blood cells in your body. Anemia is particularly common among older individuals.

Low blood circulation usually indicates arteriosclerosis, or hardening of the arteries. Atherosclerosis dominates as the most common type of arteriosclerosis. This disease involves stiffening and narrowing of medium and large arteries due to fat-rich deposits called plaques.

Gatorade is a blend of electrolytes and carbohydrates designed to protect you from dehydration. Gatorade was created in an effort to help the Florida Gators reduce heat exhaustion and illness on the field.

Blood donation is one of the most important ways to share your good health with others. Each unit of blood you donate can help up to 3 people in need of blood or blood products.