In Afghanistan, the US-led international force still occupies more than 450 bases. In total, the US military has some form of troop presence in approximately 150 foreign countries, not to mention 11 aircraft carrier task forcesâessentially floating basesâand a significant, and growing, military presence in space.
Metabolism is the set of chemical reactions that occur in living organisms in order to maintain life. These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environments.
So in the spirit of furthering science and making nutrition and health a lot more interesting, letâs take a look at the old definition of metabolism, and come up with a newer one thatâs more crispy and fresh. Hereâs the basic, undisputed classic textbook definition of metabolism: Metabolism is the sum total of all the chemical reactions in the body. Are you surprised itâs that simple? Of course, we can talk about the metabolism of such specific tissues as the liver and thyroid. We can talk about the metabolism of specific substances such as cholesterol.