Every day I am amazed at scientific breakthroughs. This article, dramatically titled "Boffins create zombie dogs", is about dogs having their blood removed and replaced with a saline solution, declared clinically dead, and revived with full function after 3 hours!
It was only recently that I learned our memories are stored in our brains physically, not electrically, hence the theoretical ability to be revived after being declared "clinically dead" if decay and cellular damage is not allowed.
My new favorite anecdote is "Live long enough to live forever" the upshot being take care of your body enough so that when breakthroughs do occur, we are alive to benefit from them.
Anti-aging / Anti-oxidant substances will be key to keeping in good shape
What a wonderful time to be alive!