Work off that Mother’s Day brunch — take the WOMAN Challenge. Pledge to walk 10,000 steps or get 30 minutes of moderate exercise every day for eight weeks and the Office on Women’s Health at the U.S. Department of Health and Human Services will provide a free pedometer (while supplies last), a log to record your progress, and weekly motivational e-mail reminders. Register at www.womenshealth.gov. And sign up Mom while you’re at it.