I'm not convinced there's anything rational in suicide by definition. Every organ, vessel, and part of your body, especially your brain, is dedicated to keeping

I'm not convinced there's anything rational in suicide by definition. Every organ, vessel, and part of your body, especially your brain, is dedicated to keeping you alive for as long as possible. I would say it's dedicated to keeping you alive long enough to raise children and help your children raise children. Which may be the same thing in practice, but more in line with how evolution works.