Not at 18!! Yes, With the use of MRI, scientists have been able to see inside the brain and to learn that the brain apparently undergoes a growth spurt during the teenage years.
Recent literatures and studies state that, while no specific age has been identified as the age at which the human brain is fully mature, many neurologists agree that the brain does not reach maturity until at least the mid-20s.
During the early years following birth, humans manufacture an estimated 250,000 neurons per minute and then spend the next few years wiring them together. Traditionally, it was assumed that this neural plasticity settles down by adulthood.
At the age of 15 -18 teenagers brain spurts in the growth. Well, this can explain parents why teens seem to be bundle of emotional loose cannons !!
According to Jay Giedd, a pediatric psychiatrist and the leading researcher for a study by the National Institute of Health, the region in the brain that controls risky behavior does not fully develop until around age 25.
Now we need to think does Age 25 is new cut off point for adulthood?