Letter: Weighty issue of the female brain

Sir: Your reply to the question (Technoquest, 10 February) concerning the differences between the male and female brain was illuminating. "Female brains are on average 10 per cent smaller than male brains." So far, so good. No one has yet produced a reliable correlation between human brain size and intelligence, so no need for us all to panic at this revelation. So why did you?

Why put in the totally irrelevant comment that "women's bodies are, on average, more than 10 per cent lighter than men's, so their brain weight is a higher percentage of the whole body." So what? Do you suggest that fat people are intellectually inferior to thin people? Or Americans to Chinese?

Dr E AGER

Exmouth, Devon