Imperial, California - A growing trend among millennials [young men who have come of age in the first decade and half of the new century] is to put their hair up in what they call "man buns," reports the Association of Mature American Citizens.  It's "cool," they say.

It is popular among urban men lucky enough to have particularly thick tresses.  But Dr. Sabra Sullivan says that while it may be fashionable, those with tight "up-dos" risk going bald in due course.  "I see it probably once or twice a week.  They're putting traction on the hair follicles that the hair is not really meant to take," the dermatologist told the Huffington Post recently.