But even with this record-setting feat , her hair might not have reached its maximum possible length.
To get to the bottom of this question, let's start at the bottom of a hair follicle.
Follicles are tube-shaped structures nestled roughly half a centimeter below the skin's surface.
At their base is what's called the hair bulb, and it contains rapidly dividing matrix cells .
As more and more trichocytes are produced, they form a strand of hair that emerges from the follicle and grows upwards.
This is why doctors doing hair implants usually use follicles from the same body part, though they'll sometimes change things up .
Doctors might implant scalp follicles, which grow at a rate of about 15 centimeters per year.
In general, our follicles are very resilient .
The precise duration and speed of hair growth varies from person to person depending on genetics, hormones, and various health conditions.
When a follicle stops growing, the hair falls out— shedding from our heads slowly, or in clumps during showers and hair brushing.
After a hair is lost, fibroblasts will trigger the growth of a new strand to fill out your scalp — usually.
As we age, follicles run out of certain cell types, which can lead to changes in hair growth.
They begin to shrink and grow shorter, thinner strands before eventually shutting down production altogether .
While it’s completely natural for hair growth to change over the course of our lives, there are ways to take more control of our scalps.
With time, the right treatments, and some genetic luck, you should be able to grow some luscious locks of your own.
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