(Per conservative estimates.) Because how could we possibly stop watching a video of her baby laughing? The video was taken during the 7-month-old Gio’s bathtime, and his deliciously chunky ...

Dr Caspar Addyman is an expert on babies' laughter. Hearing your little laugh is one of the best sounds in the world. But as well as being extremely infectious – did you know that their laughter ...

“Humour feeds off audience reactions, so if you want a comedian in your family – keep laughing.” Find out more about what makes babies laugh. 3-4 months: First giggles Babies start laughing ...