Exercise releases feel-good chemicals in your brain and body.

This approach fills you with the feel-good chemicals released from calorie-dense meals, minus the overload.

Exercise also boosts endorphins, the body's natural feel-good chemicals, which can help combat baby blues or depression.

It contains tryptophan, which helps the body produce serotonin, a natural feel-good chemical that may play a role in sexual arousal.

For a steady supply of this feel-good chemical, it's best to eat complex carbs, which are digested more slowly.

It boosts levels of serotonin, the brain's antidepressant, as well as endorphins, the feel-good chemicals released after exercise.

Endorphins are the brain's feel-good chemicals.

Physical activity also increases endorphin levels the natural "feel-good" chemicals in the body which leave you with a naturally happy feeling.

That's because your body craves serotonin, the feel-good chemical found in foods that boost your mood.