A growing body of research suggests that mice and people with red hair may have higher pain thresholds. On the other hand, some research suggests redheads “may be especially sensitive to pain.” ...

In 2021, a study found that redheads respond more effectively to opioid pain medications, requiring lower doses, also due to ...

My mother used to go to her monthly hair appointment like clockwork — on the given Saturday morning, you could find her firmly seated in the salon chair by 10 a.m., ready for her longtime colorist to ...

Fiery locks, especially those that suggested impromptu D.I.Y. dye jobs, defined many of the season’s most memorable looks. Credit...Mari Maeda and Yuji Oboshi. Prop design by Victoria Petro-Conroy ...