Most of the time, I really can't help but wonder where does my son's energy is coming from. Set him free and he will really enjoy his freedom. You'll see him running around, climbing up the stairs, the slide or the steel climbing frame in the playground. He loves playing hide and seek and running around parked cars in the garage. He's panting heavily and yet he seems not exhausted at all. I won't be surprised if he can keep up on the treadmill even. No wonder he's not plumpish because even though he has a hearty appetite for solids, formula and my breast milk, he's burning energy as if he's an athlete. Well, at least, he's active and doesn't have the slightest chance of getting obese which is more unhealthy like.