Take the 2-minute tour ×  What are the circumstances in which
neutrinos can harm humans or even kill them.?  share|improve
this question I think the only way a neutrino could harm a human
was if it triggered a device intentionally built to kill the
human if it detected a neutrino. –  Claudius Dec 10 '12 at 15:04
@Claudius: "neutrinos don't kill people, people kill people." – 
Nikolaj K. Dec 10 '12 at 15:17 @NickKidman And supernovae.
Supernovae kill people, too. –  Claudius Dec 10 '12 at 15:20
Well, if the energy of a neutrino is hundreds of GeV or so, then
such a a neutrino interacts as strongly with matter as an
electron of the same energy - that's an aspect of the
electroweak unification (well, the center-of-mass energy has to
be hundreds of GeV to make the interaction really comparably
strong, not just the lab energy). That would ionize your body
and, in modest amounts, kill you. Only low-energy neutrinos are
weakly interacting. –  Luboš Motl Dec 10 '12 at 16:01 Even in
@LubošMotl's scenario the average e