Its also because of the coughing. Just cough a bunch in general..your eyes will turn redder than shit. but there was a lot of good responses..probably a mixture of everyones feedback is why our eyes are blitzed red all the time..and for those that say their eyes dont get red, your full of shit..look in a mirror in a room with the lights on and turn your eyes to the right or left..and look at them..they will be bloodshot as shit..you just dont notice when your high because you can see great and feel great..and think your eyes look normal, when in reality to a sober person they are blitzeD :stoned: