For most microbes, the human body is a very favourable environment because it is warm, shielded from the extremities, and provides a constant source of sustenance. Hence, humans tend to get sick because they are prone to infections that can either be contagious, fatal or both. But today, the mortality rate has decreased and life expectancy has shot up due to the advancements in science and technology. Learn more about human health, and the diseases that affect us by exploring Class 12 Biology Chapter 8 Revision Notes – Human Health and Diseases right here at BYJU’s.
Class 12 Chapter 8 Biology Revision Notes