Babies cry. In fact, babies cry more in their first three months of life than at any other time. How much crying is normal? What amount is too much? By too much, I don’t mean too much for your ears to take, but excessive to the point of being symptomatic of something serious? Learn more on this Moment of Science.
However, many scientists and psychologists are skeptical of the supposed benefits of putting infants through an intensive sign language program.