Bye-bye to 'bad hair days' as experts unsnarl tangled hair

"Bad hair days" could soon become a thing of the past, according to German researchers who say they have unsnarled the mystery of frizzy and tangled hair.

The chemists from the University of Bayreuth claim they have developed the first detailed microscopic analysis of what happens to individual hair fibers when they interact with each other, which is to say when they get tangled up with each other and refuse to untangle.