After 35 years of age, the human brain shrinks in volume, starting at 0.2% a year and accelerating to over 0.5% a year by age 60. By age 90, the brain has lost on average 14% of its volume.
fact
After 35 years of age, the human brain shrinks in volume, starting at 0.2% a year and accelerating to over 0.5% a year by age 60. By age 90, the brain has lost on average 14% of its volume.