What Is It? Marfan syndrome is a genetic (inherited) disorder that affects the body's connective tissue. Connective tissue is the tough, fibrous, elastic tissue that connects one part of the body with another. It is a major part of tendons, ligaments, bones, cartilage and the walls of large blood vessels.
Your baby's first step toward mobility isn't actually a step at all -- it's a roll. When she's about 2 or 3 months old, she may flip from front to back. During tummy time (which you should supervise), your baby may lift herself into a push-up position and then start to rock back and forth or kick her feet. Then, if she's strong enough, those movements will send her rolling over.
A: Rolling over is your baby's first big milestone on the road to getting mobile, and it usually happens around 4 months, but a little later or earlier is totally normal. At first your baby will only roll from his belly to back; this is easier because he can use his arms to help him take off. Back-to-belly rolling comes later, usually by 5 to 6 months, or a month after he learned to roll over initially. Your baby's first roll-over usually occurs during a tummy-time session. When placed flat on his belly, your baby instinctively uses his arms to raise his head and shoulders off the floor.