People with Marfan syndrome may have: 1  A tall, thin build. 2  Long arms, legs, fingers, and toes and flexible joints. 3  Scoliosis, or curvature of the spine.  A chest that sinks in or sticks 1  out. Crowded teeth.  Flat feet.
The new guidelines, however, do not extend to all children under 4. The AAP still does not recommend swimming lessons before age 1, and says children with motor or cognitive disabilities may not be not be ready for swimming lessons until a later age. Drowning is the second-leading cause of death for children ages 1 to 19, according to the AAP report.
Make sure their brooder is dry and cozy too. Do what you feel best. If you think ducklings should not swim until four weeks old, go ahead and wait until they're four weeks old. If, on the other hand, you think they should swim daily, allow them to swim WHILE YOU WATCH daily. Like I said, do what you feel is right, you're their mama, we can't tell 'em otherwise.