
Now imagine doing that for thirty years non-stop.
That’s what a guy called Amar Bharati has done in devotion to the Hindu deity Shiva.
There’s a good reason I’ve told you this.
Look at his hand in the photo. It’s completely dead. In fact, he no longer has use of it — it can’t be moved and it’s even started to rot!
This is what’s happening to your hair:

Hair growth is controlled by intra-cellular chemical messengers in your scalp, which control whether your hair stays in the growth phrase or transitions to the resting or shedding phases.
You can prevent hair loss and increase hair growth by manipulating those chemical messengers to keep your hair in the growth phase.
Your hair receives the nutrients it needs to grow via the blood stream. Each hair is connected to a tiny blood vessel. The body sends amino acids to the follicles via these tiny vessels. The amino acids are turned into keratin via a process called keratinization.

When a protein in the scalp called Transitioning Growth Factor (TGF) increases it causes hairs to detach from the blood vessels and transition to the resting phase. But you can keep the hair in the growth phase by increasing vascular endorthial growth factor (VEGF) and decreasing TGF.
By manipulating these growth factors you can keep your hair in the growth phase longer. As a result the hair becomes thicker and healthier.