Scientists have claimed that women who stay fit during their pregnancy have babies with healthier hearts. Researchers from the US and Germany have found that people whose mothers exercised during their pregnancy have healthier blood vessels in adult life. They think this is because mothers who exercise while pregnant programme a baby’s arteries that can resist heart problems in the future the Daily Mail reported Friday. The study suggests that exercising in pregnancy has positive effects that could continue into adulthood. Previous studies suggested that women can improve their babies’ health by exercising during pregnancy. The study involved pregnant swine