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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
Did you know?
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.