Biologically, all men are of the same race. Studies in genetics become meaningful only when one attains an awareness to consider all men equal without any racial discrim…

The healthy constitution of the body depends on the healthy state of the external environment. Our body is well equipped with various defense mechanisms. Similarly, it i…

The state of complete physical, mental and social well-being of a person is called health. Healthy people are the real wealth of a society. The attitude towards patien…

Chemical messengers for homeostasis (Chapter 3) Endocrine glands do not have particular ducts to carry hormones to various tissues. Hence they are known as ductles…

The  blood circulatory system  ( cardiovascular system ) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the  blood  vessels runni…