Recent research has revealed a new molecular mechanism that controls hair growth. Scientists from the Massachusetts Institute of Technology have identified a protein that acts as a switch to regulate the growth of hair. This protein, called FGF9, is involved in the development of the hair follicle, and its activity helps to determine how long hair will grow. The discovery of this protein could lead to new treatments for hair loss and other hair-related disorders. It could also help to improve the efficiency of hair transplant procedures. By understanding the mechanism behind hair growth, researchers hope to develop new techniques to increase hair growth and improve hair quality.

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source: Phys.org