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Scientists in America say they're closer than ever to finding a solution for baldness. Researchers at the University of Pennsylvania believe they've found a way to "reawaken" dormant follicle cells and promote hair growth.

But what's wrong with going bald?

Loads of male celebrities have admitted having hair transplants - James Nesbitt says it's changed his life. Gordon Ramsay has been photographed leaving a clinic in the states just this week.

Shane Warne, Michael Vaughan and Graham Gooch all advertise hair loss treatments. But what's so wrong with going bald? Is it about self esteem? Or is it simply vanity?

Nicky Campbell takes your calls.