The brain takes the longest of any organ to develop and goes through more changes than any other organ. Neurons develop at the rate of 250,000 neurons per minute during early pregnancy.The first sense to develop while in utero is the sense of touch. The lips and cheeks can experience touch at about 8 weeks and the rest of the body AROUND 12 weeks.Reading aloud and talking often to a young child promotes brain development.Babies have big heads to hold RAPIDLY growing brains. A 2-year-old’s brain is 80% of adult size.At birth, your brain was almost the same size as an adult brain and contained most of the brain cells for your whole life.The brain stops growing around the age 18.Brain information moves anywhere between 1 MPH and an impressive 268 MILES per hour. This is faster than Formula 1 race cars which top out at 240 mph.Humans have more brain cells at the age of two than at any other time of their lives.If brain cells were replaced, like skin or liver cells, scientists hypothesize we would lose our memories.Explanation:please mark me as brainliest