4 ms·
> Space station mold survives 200 times the radiation dose that would kill a human > that the spores could survive radiation doses of 500 to 1000 gray (=siever
by mnau 2y ago
> Space station mold survives 200 times the radiation dose that would kill a human
> that the spores could survive radiation doses of 500 to 1000 gray (=sieverts),
Humans can survive massive amount if radiation, provided it's not all at once (research sample size = 1).
Albert Stevens survived 64 sieverts deliverted over 20 years (lethal dose 50 % die in 30 days is 4-5 sieverts).
It's almost as if linear-no-threshold model is wrong and we do actually have some capability to repair some damage
Edit: just to clarify, survive doesn't mean thrive. Just that we might survive in a deadly environment better and longer than expected.
- Retric 2y agoLinear no threshold refers to cancer not acute radiation sickness. People getting people getting a sunburn vs skin cancer from sun exposure are experiencing different biological processes, the underlying mechanisms are related but different. Threshold dosing in terms of cancer has zero evidence to support it, and cancer is already really common suggesting if there’s any threshold we are well past it. The only reason you hear about it is there is an industry who really wishes it were true. Just like people suggesting low dose exposure to lead wasn’t harmful when they want to sell Tetraethyllead in gasoline, monetary rewards cloud judgement. Same deal with tanning beds and just about any product exposing people to ionizing radiation, the risks don’t seem bad when there’s money to be made.