Bethany, Associate Health Editor

I recently visited my totally adorable, extremely energetic 4-year-old niece and almost 2-year-old nephew in Boston. Kids are so active! And while I was chasing after them, I logged some serious steps. I was basically just go, go, going from when they woke up (at 7am) to when they went to bed (at 8pm). We played tag, hide & seek and hopscotch; took walks around the neighborhood; went to soccer practice; built a fort; rode bikes and scooters; and went to a museum. Needless to say, my bedtime wasn't much later than theirs, because I was exhausted after playing with them.