Short men are more likely to lose their hair

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Short men are in greater danger of losing their hair early, because both are in their genes.
Men who feel they have lost the genetic lottery by being short may be unhappy to hear the same genes could cause their hair to fall out.
But the testosterone which can cause boys to stop growing early, by closing the plates at the end of their bones during their teenage years, is also thought to cause baldness.
The largest genetic study of male pattern baldness has confirmed four locations in men’s genes which cause them to be both vertically and follically challenged.
Researchers at the University of Bonn analysed data from around 11,000 men with premature baldness and around 12,000 with no hair loss.
The findings highlight the importance of testosterone, which can trigger early puberty in boys and stop them growing.
The male sex hormone is also a key reason for baldness, being produced in the testes, then circulating in the blood and binding to a receptor in the hair follicles.
Lead author Dr Stefanie Heilmann-Heimbach said: ‘Genes that increase the risk for baldness can also lead to earlier puberty and shorter stature, likely because all these factors are all influenced by hormones.
‘The hormones may act very slowly, over years, so it only appears 20 years after puberty.
‘I would reassure men that being short does not definitely mean they will lose their hair. If you are short and all the men in your family still have their hair, it is probably unlikely, and tall men can go bald too. But there are biological pathways which contribute to both traits.’
Half of British men can expect to lose their hair by their 50th birthday, with famous sufferers include Elton John, footballer Wayne Rooney and actor James Nesbitt.
Male pattern baldness, the most common cause, was recently found by Edinburgh University to be linked to 287 genetic differences which could pave the way to a drug to stop it happening.
The only cure already identified is certainly too drastic for most men, as being castrated prevents hair loss completely.
The latest study goes some way to explaining why, highlighting that testosterone produced in the testes can cause ‘accelerated progression of puberty’.

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