10 Weeks Old : )

YOUR BABY is 10 WEEKS OLD how they grow • A few babies sleep for five or six hours at a time now; most still wake up in the middle of the night. • At this age, babies smile at strangers, and they now grow excited when someone they know well is nearby; they reach out their arms to be picked up. • As your baby's muscles develop, his arm and leg movements are becoming much smoother and more coordinated. Is that a fact? Babies use 25 percent of the calories they take in for growth.