New study says that it's okay to let babies cry at night - Harvard Health

Just about every new parent has wrestled with the idea of whether to comfort a baby who cries during the night or whether to let him or her “cry it out.” A recent study adds more evidence to what researchers (and our own parents and grandparents) have long known: It’

Do babies cry at night to prevent their parents from having more kids? - Vox

Why Babies Cry When You Sit and Stop When You Stand

What really happens when babies are left to cry it out?

Babies are programmed to monopolise their mother's attention

Baby development at 3-4 months

Effects of Excessive Crying in Babies

The Crying Toddler - Clay Center for Young Healthy Minds

Really? Babies cry at night to keep parents away from sex! - India Today

Baby Schedule: The Truth About Infant Schedules – Happiest Baby

Letting Babies Cry – The Facts Behind the Studies - La Leche League GB

To Sleep Train or Not to Sleep Train? Little Bell Sleep Solutions