Stage 1: 0 to 10 months.
Stage 2: birth to 6 years.
Stage 3: 7 to 22 years.
Stage 4: 23 to 65 years.
Stage 5: older than 65 years.
We’ll go with hmmmmm 23-65
-The brain doesn’t full develop until the age of 25.
-brains reach adulthood at age 30.
-Concentration abilities peak around age 43.
-Peak facial recognition ability occurs around 32.
-We're the best at identifying others' emotions at 48.