diet and exercise

Regular exercise and a balanced diet are needed to keep the body healthy. Too little food leads to a person being underweight and prone to illness, while too much food and not enough exercise leads to a person being overweight and prone to other illnesses.

Excess cholesterol increases the risk of heart disease.
Excess salt causes high blood pressure and increases the risk of heart disease and stroke.

»   Nutrients
     »   Metabolic rate
          »   The right amount of food
               »   Cholesterol
                    »   Salt

[ This page has been adapted from  www.bbc.co.uk/schools/gcsebitesize/science ]