I have a real place in my heart for the YMCA; I was at my fittest during my Y membership (in those childless days I’d hit the gym at 5:30am on my way to work), and I overcame my waterphobia (developed after losing a friend during a swimming outing in high school) via one of their adult swim classes. Tomorrow, at locations across the country, the YMCA will host Healthy Kids Day, a day of free activities designed to introduce kids to the fun of fitness. Also debuting at the event will be their new Healthy Family Home program, which offers simple tips to help families play, eat, and enjoy time together at home.