Have you ever wondered if we can live for eternity?
We live and die. Between the two, we age. Aging
is the gradual decline in the body structure and function.
Eventually, the body's inability to ward off diseases results
in death. In fact, humans are programmed to die! Cells reproduce
by dividing , and each type of cell undergoes doublings. The
amount of doubling decreases as you grow. And research has
shown that if cells taken from an old are transplanted to
a young of the same species, the older cells still die at
the predestinated time. As the body ages hearts performances
are reduced, bones become more fragile and are more likely
to break, even with minor falls, our skin wrinkles and becomes
less elastic, our hair grays and thins, the body is less resistant
to infection, the sense organs become less sensitive. Worse,
even brain cells, which do not reproduce, will lose function
with age. In the scientific aspect, we age and die. However,
we also grow wiser with age and become more experienced. It's
never too old to laugh, or make new friends and to enjoy the
fruits of success during youth.
|Do you know?
- The only multi cellular animals that dont
die from aging process are tortoises and sharks.
- The only cells to divide indefinitely are
- By old age, the number of taste buds on the
tongue is reduced to one-third of the original
- Gerontology is the science that studies the