|Class 9 Biology Why Do We Fall Ill||How to treat diseases|
How to treat diseases
The two ways to treat diseases are to reduce the effects of diseases and to inhibit the growth or kill the disease causing microbes.
In order to reduce the effects of the disease take medicines to reduce pain and fever to some extent accompanied with adequate rest to conserve energy.
Each kind of disease causing microbes like virus, bacteria, fungi, protozoa have their separate and unique biochemical life processes. The life processes of one organism are not shared by other organism.
The bacterial infections can be cured by using antibiotics.
Antibiotics are the medicines that inhibits the growth or kills the bacteria cauisng microbes by blocking the pathway for bacterial synthesis but doesnot affect its own pathway.
The antibiotics block the biochemical processes used by bacteria to build cell wall that protects them. Consequently, the growing bacteria cannot make cell walls and dies at the end.
But viruses on the other hand have very less biochemical life processes of their own and hence uses our mechanisms for their life processes that results in lesser number of virus specific targets to hit by the antibiotics. Therefore, antibiotics cannot cure viral diseases or infections. But still there are many anti-viral drugs available in the market.
Specialised cells called immune cells in human body fights off disease causing microbes and kills them everytime such microbes enter the body.
If the specialised cells kills the microbes then we don’t fall sick.
Availablity of proper, sufficient and nutritious food is necessary to stay healthy.
If a body suffers from a particular disease once then there are lesser chances of suffering from it again because when a bodysuffers from an infectious disease for the first time it fights against it and kills it.
The the immune cells win the fight then we are disease free or else we fall sick.
The cells remembers how to respond to that specific disease due to which when the body encounters from the same disease next time, it responds to it with increased vigour. This helps to eliminate the infection at a greater speed.