>>54336632Hair grows at about 1/2 an inch per month. Lots and lots of factors can make it grow slower including stress, diet, age, basically all of the things that you might usually associate with poor health/lifestyle. Not a whole lot of factors are proven to make it grow faster though, apart from specific medications like minoxidil (aka Rogaine) which I doubt a woman her age would take. So it probably grows at the typical rate of 1/2 per month or half a foot per year.
Cynthia's hair is about 72% as long as her whole body is tall. If we assume that she's six feet tall (for the sake of an easy round number) that makes it about 52 inches long. At that rate, if she were to shave all her hair off, we would expect it to have grown back to its full length at about 104 months, or a approximately 8-9 years.
