As it is said that the heart is approximately the size of our fist so when we grow up then, will the size of the heart will change or will it remain the same?
 

Heart is a pumping organ that beats continuously and pumps oxygen-rich blood to all parts of the body and carbon dioxide-rich blood to the lungs. It is located in the chest cavity and is approximately the size of your fist.

 In case of babies, when they are born, their heart size is almost equal to their fist. As the body develops, size of heart also grow in size.

Regards