Cigarettes and Other Tobacco Products. Revised May 2016. Provides an overview of the effects of cigarette and other tobacco products, including their effect on the brain, other health effects, approaches to smoking or nicotine cessation, and overall use among youth.
The average male adult has about 5 million red blood cells per cubic millimeter of blood, while the average female adult has about 4.5 million red blood cells per cubic milliliter of blood. This may vary by about 300,000 to 500,000 red blood cells.
In a normal adult the red cells of about half a litre (almost one pint) of blood are produced by the bone marrow every week. Almost 1 percent of the bodyâs red cells are generated each day, and the balance between red cell production and the removal of aging red cells from the circulation is precisely maintained. The rate of blood cell formation varies depending on the individual, but a typical production might average 200,000,000,000 red cells per day, 10,000,000,000 white cells per day, and 400,000,000,000 platelets per day.