Young children, especially infants, are now more likely to be overweight than two decades ago, according to a U.S. study. "The obesity epidemic has spared no age group, even our youngest children," said Dr. Matthew Gillman, the senior author of the study and a professor at Harvard Medical School. Over 22 years in Massachusetts, the number of overweight infants increased by 74 per cent, the researchers reported Wednesday. The results are important for public health because studies show faster weight gain in the first few months after birth is associated with obesity later in life. "These results show that efforts...