Explain why it is important for a well-designed weight-training program to develop all six areas of the body.

Because all areas are important for the body

Because all areas of your body should be just as important as any 

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases. 

Carbohydrates,fats and proteins