EDMONTON, Alberta (CTV Network) Boys born weighing less than a kilogram (2 lb. 3.27 oz.) are 4.6 years older biologically later in life than men of the same age who were born at a normal birth weight, according to a recent study by McMaster University researchers.
The study, published in the journal Pediatrics on Monday, suggests that accelerated aging may be influenced by physiological stress put on the baby in utero and, later, in the hospital neonatal intensive care unit after they are born.
Researchers at McMaster University have been following a group of extremely low birth weight (ELBW) babies and their normal weight counterparts since 1977 as part of the observational study.
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Premature boys age faster than those with normal birth weight, study suggests
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