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.
Most babies outgrow the typical rearâfacingâonly seat before they are one year old, but they are not ready for a forwardâfacing seat. New convertible seats available today allow children to remain rear facing until they weigh 30-45 pounds, depending on the model. Babies have heavy heads and fragile necks. In a crash, an infantâs soft spinal column can stretch, leading to spinal cord damage if he is riding facing forward.