Research with germ-free mice offers clues to how microbiota in mothers and babies may influence susceptibility to diseases, including cancer, later on.

When they hear laughter, babies as young as five months can tell if it's between friends or strangers.

"...when you have wires everywhere and the baby is tethered to a bed, it's really hard to make skin-to-skin contact."

When researchers transplanted gut bacteria from babies into mice, the mice had protection against an allergic reaction.

"...there may be a 'sensitive period' in which stress is more likely to affect the development of the hippocampus."

"It's not just a question of 'Is the mother feeling depressed?' but rather, 'Which way is she headed in her depression?'"

"We think breastfeeding optimizes the process the brain undergoes when solidifying handedness..."

A Chinese scientist has claimed to use CRISPR to genetically engineer two babies. An expert explains what this means and the ethical implications.

Getting your baby active while they're awake could help you both sleep better at night.

When it comes to teaching your baby to talk, how you speak may be even more important that what you say. And with a little coaching, any parent can do it.