I'm 37
my main reason is to cure a damaged (crushed) nerve in my hip/bum - sciatic nerve.
Lying on a tennis ball under my bum and fasting are the only things that have helped it. Dry fasting is working like a miracle on it now.
Damaged my liver and general health by drinking too much alcohol for too many years and had some nasty all day binges where I lost control and did serious damage.
My health is so much better now.