Gobbledygook! This myth came from the observation of men’s facial hair. As they shaved, the facial hair would indeed grow in thicker. Its called, ‘puberty.’
This is because certain male hormones affect facial hair in that manner. They do not affect the hair on the head in the same way.
To the contrary. Male hormonal activity is what leads to hair thinning and loss on certain parts of the head, but not all. Hence the familiar balding pattern known as ‘male pattern baldness.’ This same hormonal activity also affects women, but not until much later in life, and in a different pattern.
Cutting your hair only makes it shorter, does not affect the growth rate one iota, and cannot determine the length that your hair will grow to. Maximum hair length is determined by the shape and width of the hair shaft, and that is determined genetically and is not alterable with current technology.
Lastly, hair is neither healthy or unhealthy. It is in fact, dead. Else, it would really hurt to cut it. It is the health of the hair follicle below the outer skin that requires nutrients for good health, and deminished adverse hormonal activity.
So, unless you have split ends or chemically damaged hair, the only need to cut your hair is for the look that you want.
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