​Vitamin A  is a very essential vitamin needed for our body growth and development. It also plays a crucial role in cell recognition, vision, immune function, and reproduction.

Vitamin D  is a fat-soluble vitamin that is made when the skin is exposed to the sunlight. Only a few foods are rich in vitamin D including Milk products.
It helps the body to absorb the Calcium from food and support the maintenance of healthy bones. It also aids muscle health, cell growth and a significant role in the immune system.

Vitamin C is necessary for the growth, development and repair of the body tissues.Maintaining the balance of the immune system.

Heart Attack is blockage of any of the arteries of the heart results in a heart attack.
Cardiac Arrest: Cardiac arrest is a sudden loss of heart function that is due to the disturbances occurs in the rhythm of the heart. Cardiac arrest is distinct from the heart attack.  A heart attack can lead to cardiac arrest.

​The cell is the fundamental structural and functional unit of an organism. Human body comprises of different types of cells carrying out different kinds of functions. A group of cells forms the tissue and group of tissues form the organ. Different organs work together to develop an organism.