Male infants who grow slowly in the first year of life may wind up making less money in middle age, according to a British study. The researchers behind the study believe that slow growth in infancy may hamper brain development.
In the first year of life, the brain has not yet finished developing, notes study author David Barker, Ph.D. a researcher at the University of Southampton in England. As a result, children who grow slowly in the first year of life may not develop mental capabilities as quickly as their faster-growing peers.
With help from the National Public Health Institute in Helsinki, Finland and Southampton colleague Clive Osmond, Ph.D., Barker studied 4,630 men born in Helsinki between 1934 and 1944. Each subject's height was tracked until the age of 12. The team matched up this information with education, income and occupation data from the 1990 census.