Here's why split ends don't grow:
* Split ends are damage, not growth: Split ends happen when the hair shaft, which is dead tissue, becomes dry, brittle, and frayed. This damage doesn't affect the hair follicle or its ability to produce new hair.
* Hair growth is a continuous process: New hair grows from the follicle at the scalp, pushing the older hair shaft up and out. The ends of the hair, which are the oldest part, are the furthest away from the follicle.
* Split ends don't magically "heal": Once the hair shaft is damaged, it can't be repaired by the body. Split ends can only be removed through trimming.
So, to summarize:
* Hair growth comes from the scalp.
* Split ends are damage that happens to the hair shaft after it has left the scalp.
* Damaged hair can't "heal" itself.
If you want longer, healthier hair, you need to focus on:
* Preventing split ends: This can be achieved by using hair treatments, avoiding excessive heat styling, and getting regular trims.
* Promoting healthy hair growth: This involves eating a balanced diet, managing stress, and getting enough sleep.