Women’s brains are 'four years younger' than men’s, study finds

Analysis of metabolic brain age may explain differences in cognitive decline rate

Women's brains are nearly four years younger than men's, at least in how they burn fuel, according to scans performed by US researchers.

Scientists found that healthy women have a "metabolic brain age" that is persistently younger than men's of the same chronological age. The difference is apparent from early adulthood and remains into old age.