These differences may be due to genetic factors. Many genes have now been identified which either increase or decrease appetite. This means that some people are more hungry than others, or need to eat more food before they feel full. This increases the chances of overeating and gaining weight. Eating too much fat can also increase your risk of heart disease - for more information, check our Dietary Requirements section .
Many people find themselves turning to food when they are tired, bored or emotional.
At difficult times try to find other ways of improving your mood apart from food. Phoning a friend, talking a short walk or tackling an outstanding chore can all be useful distractions from food. Physical activity People who lead an active life are much less likely to gain weight than those who spend most of their day sitting down in front of a computer or the TV, or in the car. Regular exercise can help to control your weight and improve fitness too, reducing your risk of heart disease and diabetes. Obesity does not develop overnight.