Average brain weights
Male, in grams, (Female)
Newborn 380 (360)
1 year 970 (940)
2 years 1,120 (1,040)
3 years 1,270 (1,090)
10-12 years 1,440 (1,260)
19-21 years 1,450 (1,310)
56-60 years 1,370 (1,250)
81-85 years 1,310 (1,170)
(Data from Dekaban, A.S. and Sadowsky, D., Changes in brain weights during the span of human life: relation of brain weights to body heights and body weights, Ann. Neurology, 4:345-356, 1978)
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