Why do we get tired?
Most of us feel tried after working all day long. We also
feel tried after running, swimming or exercising.
When we work at a fast speed, our muscles do not get as
much oxygen as they need. The glycogen stored in our muscles is transformed
into lactic acid through the process of fermentation provide extra energy to
the body. The lactic acid reduces the working capacity of the muscles. This
state of the body is known as muscle fatigue.
Tired woman
The lactic acid acts as a poison for the muscles. If we
can expel the lactic acid form the muscles by some process, they can again
become fit for working.
As a result of the muscular action, some other substances
called fatigue toxins are also produced in the body. These acids and toxins are
circulated through the body by the blood, because of which both the body and
the brain get tried. Even when we do some mental work, lactic acid and fatigue
toxins are produced in the body and we get tired. Scientists have conducted
many experiments in this field. A dog was made to work hard. And when it got
tired and went to sleep, its blood was transferred into an active dog’s body.
Guess what happened!
The active dog also became tired and fell asleep.
Similarly, if the blood of an active dog is transfused into the body of a tired
dog, it immediately becomes active.
Fatigue is not only chemical process but is a biological
process also. It is a defense mechanism. This warns us to stop working and give
test to the body. Fatigue cannot be removed quickly. It is essential to gibe
rest to the cells of the body to overcome remove fatigue. It repairs the
damaged cells of the body.
When the body receives proper quantity of oxygen through
berating the lactic acid is converted into glycogen and we feel energetic once
again. Little rest also removes fatigue is supplied to some extent by our food
also. That is why a tired person feels very hungry.
No comments:
Post a Comment