Because the lungs and liver are some of the last organs to mature, preterm babies are at greater risk for respiratory distress syndrome and jaundice. While just one out of 20 singleton babies will have jaundice, one out of five twins, one out of two triplets, and three out of four quads will have it, Dr. Brost says.
By age 21, Drogba realized that he had to establish himself as a player soon or else he would have little chance of becoming a professional footballer. He made his first team debut for Le Mans soon thereafter and signed his first professional contract in 1999.
How old do you have to be to play basketball professionally? As of 2015, NBA regulations stipulate that players must be at least 19 years old and one year out of high school to begin playing professionally. NBA Commissioner Adam Silver has discussed raising the minimum age to 20.