Is a structured exercise program the only option?

Some research shows that physical activity such as regular walking — not just formal exercise programs — may help improve mood. Physical activity and exercise are not the same thing, but both are beneficial to your health.

• Physical activity is any activity that works your muscles and requires energy and can include work or household or leisure activities.
• Exercise is a planned, structured and repetitive body movement done to improve or maintain physical fitness.

The word "exercise" may make you think of running laps around the gym. But exercise includes a wide range of activities that boost your activity level to help you feel better.

Certainly running, lifting weights, playing basketball and other fitness activities that get your heart pumping can help. But so can physical activity such as gardening, washing your car, walking around the block or engaging in other less intense activities. Any physical activity that gets you off the couch and moving can help improve your mood.

You don't have to do all your exercise or other physical activity at once. Broaden how you think of exercise and find ways to add small amounts of physical activity throughout your day. For example, take the stairs instead of the elevator. Park a little farther away from work to fit in a short walk. Or, if you live close to your job, consider biking to work.