BRAIN FACT: During Pre-natal Development A Baby's Brain Makes About 1.8 Million New Connections Each Second

During pre-natal development a baby's brain makes approximately 1.8 million new connections each second. The time before birth is not long enough to complete full development. Eighty five percent of the brain continues to develop by age 3.

PRENATAL BRAIN FACT: A Baby's Brain at 35 Weeks Gestation Weighs Only 2/3 Of What It Will Weigh at 40 Weeks

A baby's brain at 35 weeks gestation weighs only two-thirds of what it will weigh at 40 weeks gestation (full term).

For more information on this topic visit the March of Dimes.