Nature has created resistance in the human body, which enables it to fight against germs. The defense system of our body is called as immune system. An active immune system guards our body against micro organisms like bacteria, viruses and fungi and saves us from getting an infection. Here are some interesting facts about immune system.
1. Parts of immune system
Skin is the first barrier in the way of microorganisms, then comes the innate immune system, which is a short term protection and if germs passes through both of these layer, the third and more active immune system come into action.
2. Allergies
You can call allergies a mistake of immune system. When a harmless substance is recognized as harmful substance by our immune system, we get allergic reactions.
3. Phases of immune response
Phases of immune response include recognition than amplification of defense, after that it attacks the microbe and in the end suppression.
4. Harmful effects on immune system.
Some things are really harmful for immune system, like smoke, air pollution, pesticides and toxic substances. These things negatively effects out immune system and reduces its efficiency.
5. Importance of sleep
Proper sleep is really vital for the proper functioning of immune system. If a person sleeps less than 8 hours, his immune system will become weaker.