Clue to male baldness discovered [View all]

A biological clue to male baldness has been discovered, raising the prospect of a treatment to stop or even reverse thinning hair.

In studies of bald men and laboratory mice, US scientists pinpointed a protein that triggers hair loss.

Drugs that target the pathway are already in development, they report in the journal Science Translational Medicine.

The research could lead to a cream to treat baldness.