Board Thread:Manga Discussion/@comment-189.84.202.137-20180524152410/@comment-2A02:A450:6F5F:1:C940:B714:5F1:AA07-20180626200941

No, it's pretty legit. His organs weren't destroyed. They outright said that he didn't take much damage, and died of suffocation. Reanimating someone from suffocation isn't that hard in real life, though if your brain goes without oxygen for too long, that leads to irreversible brain damage. We don't know exactly how long Hisoka was dead, but I'm guessing it was around half an hour to an hour.