Episode VII (spoilers)

[Drich]

Remember your failure at the cave!

If we learned anything from Luke's training with yoda, using the force takes concentration, and couple that with what vader taught us sith powers take the extra measure of anger and hate.
Maybe that is why he kept punching himself in the blaster wound chewie gave him. Remeber this is the same type of wound that all but crippled Chewbacca in the first major battle. pushing though the pain of a torso blast, then sword fighting, then getting knicked a couple of different times.. by the end of the fight this guy was maybe firing on 2 of 10 cyclinders. while rey was firing on 8 of 8. Considering what he went though I think he put up a fairly good defense/attack remember he did just take on their version of a 'spartan' and sliced him open like a taun taun..

So being thrown through the air to slam against a tree, being knocked unconscious by the impact, which presumably means a concussion, and then falling about 8 feet to the ground,  doesn't break some cylinder seals or connecting rod or two between Rey's 8 cylinders?

It causes her to stall (knocked out) but when she restarts she is pedal to the medal!