synÂ·theÂ·size (sÄ­nâ²thÄ­-sÄ«zâ²) v. synÂ·theÂ·sized, synÂ·theÂ·sizÂ·ing, synÂ·theÂ·sizÂ·es v.tr. 1. To combine so as to form a new, complex product: His works synthesize photography, painting and linguistic devices (Paul Taylor). 2. To form or produce by chemical synthesis. 3. To produce (sound or music) by means of a synthesizer. v.intr. To form a synthesis.
There are a number of other risk factors for premature labour and delivery. Some of these risks, such as anemia, slow maternal weight gain, stressful work habits, smoking, drinking alcohol, and using drugs like cocaine, can be rectified during pregnancy.
What causes premature birth? Babies born before 37 weeks gestation are considered premature, and according to Tommy's the baby charity, around 7% of all babies born in the UK in the years 2001/2002 were born prematurely. Some babies born early are fine; they are just small. But often when a baby is born preterm, his organ systems may not have had time to fully develop. According to Tommy's, the majority of preterm births occur without any obvious cause or known risk factors.