So Johnny Depp has a band called The Hollywood Vampires.

Now his young blood supply has been cut off he's aging fast.

https://www.unilad.co.uk/news/expert-reveals-possible-reason-for-johnny-depps-gaunt-appearance/

http://www.chemotherapy.news/2018-10-05-to-stop-cancer-change-your-blood-opt-out-of-cancer.html

As the Bible says in Leviticus ch 17

14 For the life of all flesh is its blood. Therefore I have told the Israelites: You must not eat the blood of any living thing, because the life of all flesh is its blood; whoever eats it must be cut off.