According to a study for pregnant women who commute over 80 km to work each 16 km increased the probability of having a low-birth-weight baby 14 per cent. Further increasing travel by 16 km over the 80 km distance threshold was also associated with a rise in probability of slowed foetal growth by 43 per cent compared with pregnant women living within 16 km of their workplaces said the study published in Economics and Human Biology journal. The finding that low birth weight might be associated with a source of stress like long-distance commuting is some what expected since chronic
