[Darkwolf377]

Soon after the person dies, water in the body is replaced with an antifreeze to stop cells deteriorating.

Two possible outcomes for this:

1. People in the future won't care about waking up our frozen dead, and will just bury them.

2. People in the future wondering how nuts we were. "We could have brought them back to life but you filled them with anti-freeze. They're dead!"

[A_perfect_lady]

Yeah, the antifreeze really sounds like a deal-breaker to me.