What does head size have to do with Alzheimer's? Read more: http://wellness.blogs.time.com/2010/07/12/what-does-head-size-have-to-do-with-alzheimers/

"Our findings also underline the importance of optimal brain development early in life, since the brain reaches 93 percent of its final size at age six... Improving prenatal and early life conditions could significantly increase brain reserve, which could have an impact on the risk of developing Alzheimer's disease or the severity of symptoms of the disease."

http://wellness.blogs.time.com/2010/07/12/what-does-head-size-have-to-do-with-alzheimers/