I've seen too many people get unnecessary, life-quality-killing butcherous surgeries and read the evidence confirming most end-of-life surgeries rarely have useful benefit. If you're going to check out, go with dignity and don't put your family / self through extended suffering. If you have to go in an unprogressive country, nitrogen itself leaves no evidence and paraphernalia is minimal and can be removed.

Also, please do a will, pick an executor, prepaid funeral and make a Quick Reference guide to finances, assets, bills, keys and passwords... both my mother and I are getting this done ahead of time.

It's not as depressing as leaving family to stumble through things while grieving.