"Every time you pluck a gray hair, many more will grow overnight!" We've all heard this urban legend, but how true is it? 

It's actually not a good idea to pluck them, but not because you'll get a lot more out of what you have. This theory is not based on science and therefore has no truth whatsoever. It's normal to lose up to 159 hairs a day, but they're basically not connected to each other in any way, so pulling one strand doesn't push others off the scalp. 

But plucking a hair doesn't make it grow back, and that's an idea that has no basis in science. It's normal to lose up to 159 hairs a day, but they're basically not connected in any way, so pulling one doesn't push more from the scalp.

But what can happen if you try to remove that gray, to at least disappear for a while? The plucked hairs that you cut short will stop for a while and start the next growth cycle after about three months.

"In each cycle after the age of 20, the hair grows a little thinner and stays a little shorter. Cycles in the head occur on average every five years, and there is a limited number of them.

So by pulling out your hair with full awareness, you may be doing yourself more harm than good. In addition to shortening their growth cycle, you cause trauma to the hair follicle - which leads to infection or even white areas where hair no longer grows.

Dandruff is inevitable as we grow older, especially if it's part of our genes, it's just a matter of time before we see it. Therefore, new hair is not coming out because you plucked some strands, but simply because time passes...

Source: Huffington Post