Among the 40 per cent of men over the age of 35 who lose their hair, there are very few who think it s a joke. One of them, Martin Plimmer , examines the Psychology of baldness and learns how reactions can range from grudging acceptance to thoughts of suicide. One man lost his hair and then his wife; others mortgage the house to finance hugely expensive, but ineffective treatments. On top of that. the one drug that might offer some reprieve from the tyranny of male-pattern baldness turns out to reduce sex drive. producer Brian King