Shared care arrangements may work fine for estranged parents, but it does more harm than good to kids, especially babies.

A new study showed that babies below the age of two who spend one night a week or more away from their primary career show considerably added signals of tetchiness and separation worry, are more querulous, tearful and tricky to calm than other infants.

Kids aged two and three show indications of higher nervousness, eating problem and violent behavior.

They show less determination in tasks, and tougher behavior such as crying or hanging on to the main career.

Jennifer McIntosh, an associate professor in psychology at La Trobe University stated, "We don't want to give the impression that overnight care is an absolute no-no for children under four. If an occasional overnight stay makes the primary career a better parent it's probably a good thing." (With Inputs from Agencies)