But men and women don't always fit neatly into their respective groups. A University of Cambridge study found that 17% of men have a 'female' empathising brain and 17% of women have a 'male' systemising brain.
Our mathematical correspondent has just announced some startling discoveries, claiming to have found conclusive proof that 1 is equal to 2, that every person in Canada is the same age, that a ladder will fall infinitely fast if you pull on it, ...