After a long day of work, or chasing children, or just trying to fit life into your schedule, the last thing you might think about is being active. However, staying active is part of a healthy lifestyle, and it has the added benefit of helping us feel happy. When we are active, our brain releases a chemical called serotonin. This chemical helps us feel happier. Feeling down? Start with a low-intensity activity such as walking. Bring the dog or your family along to share the experience. Other great activities include biking, doing yard work, swimming, and throwing a ball around. Still having a hard time fitting in being active? Try to add a little bit of activity to your work routine, especially if you have an office job. Stand at your desk instead of sitting. Take time during the day to stretch. Remember, small changes over time can make a big difference!