Sunday, March 8, 2015

Graying . . .

 . . . heads . . .

(from http://www.loc.gov/rr/scitech/mysteries/grayhair.html)
". . . Parents often cite having teenagers as the cause of gray hair. This is a good hypothesis, but scientists continue to investigate why hair turns gray. In time, everyone’s hair turns gray. Your chance of going gray increases 10-20% every decade after 30 years. Initially, hair is white. It gets its natural color from a type of pigment called melanin. The formation of melanin begins before birth. The natural color of our hair depends upon the distribution, type and amount of melanin in the middle layer of the hair shaft or cortex.

Hair has only two types of pigments: dark (eumelanin) and light (phaeomelanin). They blend together to make up the wide range of hair colors.

Melanin is made up of specialized pigment cells called melanocytes. They position themselves at the openings on the skin’s surface through which hair grows (follicles). Each hair grows from a single follicle. . . the hair follicle has a “melanogentic clock” which slows down or stops melanocyte activity, thus decreasing the pigment our hair receives. This occurs just before the hair is preparing to fall out or shed, so the roots always look pale.

Moreover, Dr. Tobin suggests that hair turns gray because of age and genetics, in that genes regulate the exhaustion of the pigmentary potential of each individual hair follicle. This occurs at different rates in different hair follicles. . ."








What do you think?
Tell me at
http://www.rayjozwiak.com/guestbook.html  or at
http://www.ohomusic.com 


OHO's "Ocean City Ditty," the CD single is now available at http://www.cdbaby.com/cd/oho4
(and, if you're in town, at Trax On Wax on Frederick Rd. in Catonsville, MD) OHO is Jay Graboski, David Reeve & Ray Jozwiak.  Please Visit http://www.ohomusic.com 


My latest solo offering, Just More Music by Ray Jozwiak, featuring original, instrumental piano music will be released April 7, 2014  Just More Music by Ray Jozwiak
(To Access all Ray Jozwiak - Gonzo Piano music you can copy-and-paste this URL directly to
your browser:  http://http://www.cdbaby.com/Artist/RayJozwiak)

Also, be sure to visit:
http://www.rayjozwiak.com



 PIANOGONZOLOGY - Blogged My 
Zimbio