No one in our society needs to be told that exercise is good for us. Whether you are overweight or have a chronic illness or are a slim couch potato, you've probably heard or read this dictum countless times throughout your life. But has anyone told you-indeed, guaranteed you-that regular physical activity will make you happier? I swear by it.

...The more a person is inclined to gratitude, the less likely he or she is to be depressed, anxious, lonely, envious, or neurotic.

No one in our society needs to be told that exercise is good for us. Whether you are overweight or have a chronic illness or are a slim couch potato, you've probably heard or read this dictum countless times throughout your life. But has anyone told you-indeed, guaranteed you-that regular physical activity will make you happier? I swear by it.

The combination of rumination and negative mood is toxic. Research shows that people who ruminate while sad or distraught are likely to feel besieged, powerless, self-critical, pessimistic, and generally negatively biased.

All that is required to become an optimist is to have the goal and to practice it. The more you rehearse optimistic thoughts, the more 'natural' and 'ingrained' they will become. With time they will be part of you, and you will have made yourself into an altogether different person.

People prone to joyful anticipation, skilled at obtaining pleasure from looking forward and imagining future happy events, are especially likely to be optimistic and to experience intense emotions.

It turns out that the process of working toward a goal, participating in a valued and challenging activity, is as important to well-being as its attainment.