Every living organism requires energy. In order for life’s activity to take place, human cells must create their own energy. Every day trillions and trillions of cells toil for ingesting and digesting nutrients, removing toxic wastes and reproducing themselves.

 Needless to say that cell health is vital for producing energy. Healthy life style, Healthy eating habits promote the cell health. This ensures we wake up, get to work, enjoy life and provides optimistic attitude towards life. One can enjoy the bliss of life, both physically and mentally.

Energy is needed in doing any activity. Without energy life is not possible anywhere in the universe. We all know that energy transforms from one form to another. Food is our major source of energy and we should take it accordingly. 

Food is no doubt is the source of energy. But utmost care has to be exercised in order to select a Healthy and balanced food. Besides healthy food, A healthy life style is very essential. Yoga or physical exercise will do the needful.

Both physical and mental energy are also directly dependent on your well being. Today's lifestyle is such that although you get paid well, you are expected to work for 10-12 hours a day without giving you room for any healthy activities or diet.So, it is all the more important for people to be aware and make the best they can so that they dont feel drained ..One can achieve very little without being energetic and alert !

Life without energy makes people a walking corpse. Movement itself is an exercise. For movement you need energy. More than anything else one should keep themselves busy with some kind of activity.

definitely, because if we want to earn, then the most important thing which is required is energy which will come from a good diet. Both are related to one another, energy=money and money=food and food=money

Agree with you. The equation you gave clearly establishes the fact that energy is required for every kind of activity.

yeah sir that equation is run for every individual whether he/she is poor or rich, its for everyone 

As far as energy is concerned everybody requires it. Be it a Prince or pauper.

As the  purchasing power of individuals go up they start over energising themselves by increased consumption of variety of eats. So energy upto the required level is good, beyond can create problems.