Bess Marcus on keeping fit during holidays Bess Marcus, professor of psychiatry and human behavior, is a clinical psychologist who conducts health-promotion research centered on physical activity. She knows what it takes to start and stick to an exercise program, as she explained recently to the George Street Journal's Scott J. Turner.
Exercise is important all of the time.
It may be more important now because this is when people report higher levels of stress. Think of physical activity as a way to have fun, as something for you. You more than get back what you put into physical activity. You will be putting your best foot forward. If in summer you like to go on long walks, that may not work now.