What is immunity?

Abhimanuverma27 Apr, 2021Health

Immune system is a defence mechanism of the human body that protects humans from external infections, unhealthy bacteria, viruses, toxins and other harmful elements.The pathogens in our surroundings enter our body through breath or food etc. and make us sick. Young adults with strong immune systems are less prone to any diseases. But as humans grow, their immune system starts deteriorating and they become more prone to catch diseases like cold, cold, fever, malaria, etc.