Does chemo stop hair going grey?
Question
Before undergoing chemotherapy, I was greying, but when my hair grew back, it was brown. Is that regular and if so, why does it happen?George, Westminster
Answer
** Definitive **Name: Keith, Hackney
Qualification: Worked in a medial physics department in a hospital
Answer: Assuming the man is being treated in a low-energy consumption environment like a hospital, they use low-energy lighting tubes. for hygiene purposes the poly-carbonate tubes around the tubes are removed. The short-wave radiation at 260 nano-metres will dimerise amino acid tyrosine, which is in the hair follicle cells, which produces the hair. The dimerisation produces a melanine-type structure, but denies hair-building. It can't make keratin to build hair.
(James O'Brien: You get a round of applause, with the proviso that I've no idea what you have just said.)