If ten year olds can breathe underwater for 4 minutes so can you.
Wait...did you just use a children's comic panel to try and prove your point? No offense, I'm not disagreeing with you or anything, but literally just about any other website would have been a more credible "source" if you wanted to prove your point.
Intrepidity. Courtesy. Illusions. Until the end. Until the end. Someone invite me back to the That's What She Said board. =(
the whole underwater think lasts about a minute. anyone can hold there breath that long. nothing superhuman about it.
Considering they've been running/fighting/swimming before then and the fact that they weren't able to take a breath before going under, (at least Helena didn't) yeah....it's pretty superhuman. Not to mention everyone gets infected from the virus when they breathe, but not Leon and Helena! lol