TheWinterSnow
Den Mørke Natt
During the process of freezing they swap your blood out with a cryoprotectant, and this cryoprotectant is toxic.
At the same time, some water will be left and might cristalize inside of your internal organs.. its basically impossible to freeze an organ without damaging it.
What they rely on is that we might be able to cure these issues in the future, but at the same time, your entire body will be filled with poison.
Another issue is that its illegal to cryogenically freeze someone who is not dead.. so massive brain damage will occur before freezing the individual.
The cryoprotectant is a relative new technology, and they are working now one using sugar and salt preservatives( while salt being a toxin as well is not as bad). Considering that the first person was preserved in 1967 and the first person who was vitricated was in 2005 and the new technologies that will be around within our lifetimes, the preservation process will be a lot better.