Can AI-powered apps deliver a healthier, thicker, better head of hair? Armed with my phone (and a few pictures of my crown), ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." DIY dye may have gotten a bad rap in the past, but you no longer have to sacrifice professional-level ...

Add Yahoo as a preferred source to see more of our stories on Google. The trucking industry’s decade-long push for hair follicle drug testing is reaching a critical inflection point as the Trump ...

It has been more than six years since Congress mandated that the Department of Health and Human Services adopt a drug testing rule allowing the use of hair samples to drug-test drivers and other ...