A good diet, adequate nutrients, hydration, and exercise are foundations for healthy hair and growth. But, many mistake lack of length retention for lack of growth. Unless there is some underlying condition, hair is always growing. If hair is growing elsewhere on your body, it’s growing. And it’s pretty easy to know your growth rate if you relaxed/relax or color/colored your hair. However much new growth you had 4-8 weeks post relaxer/color will tell you your growth rate. The problem often is that the growth is lost to breakage (i.e. the hair is not retaining length).
So, the assumption is that the hair isn’t growing when, in fact, it is. So, the focus needs to change from growth to retention. All that being said, hair is dead once the strand “erupts” from the scalp. So retention is about preserving dead cells. Eating a healthy, well-rounded diet and exercising helps build stronger hair IN the scalp. Stronger and healthier live cells inside mean stronger and healthier dead cells outside. And the latter will be better able to retain length with the right protective/retention practices for you.
And those are my thoughts in a nutshell! Yes, a good diet, exercise, and adequate nutrients play a part in growing healthy hair, but if that hair isn’t retained, you won’t see longer tresses. So, you have to make certain to take care of both ends, literally ;), to see results if long hair is your goal. To learn more about what I do to “grow” my hair long, check out my post, How I Retain Length.