Are you ready to be shocked and inspired? Prepare yourself. This dude, Andrew Johnson, a fitness model, has no pulse. Like, literally, his heart produces no pulse, and he has to carry batteries everywhere to keep it going. Yet he still seems like the nicest dude you'll ever meet. The world might be terrible, but people like Andrew make it bearable.

In 2012, Andrew was diagnosed with cardiomyopathy, which affects the heart's ability to pump blood. Andrew spent 4 months in the I.C.U. and was fitted with a left ventricular assist device, or LVAD, which basically pumps Andrew's heart for him. The thing is, the LVAD needs power that Andrew's body can't provide, so he carries around huge battery packs that need to be recharged regularly to keep him alive.