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Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.