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Let us send you a free leap-alarm email every time your baby is making a leap in his mental development. As the mental development is based on the due date, and not the date of birth, we ask you to fill in the due date.
You are here: Home Mental development First two years Mental leap 1 Leaps in mental development Definition

What is a mental leap?

Baby growing leapA leap in the mental development of your baby means that suddenly there are many changes in his head. Suddenly, his brain perceives things it wasn’t capable of perceiving before. This change is so great that his entire world suddenly looks different.


Your baby's mental development is very important and significant. It affects not only your baby's mood, but also his health, his intelligence, his sleeping pattern, the three C’s (crying, clinginess, crankiness), and much more. Once you understand your baby’s mental development, you can help your baby in so many ways. If you would like to learn more about the mental development of your baby, order a copy of The Wonder Weeks, which is based on international research.