What everyone else said. I think I came full circle after nursing school
. After MedSurg 1, I thought, "OH MY GOD I'LL GET CANCER AND EVERYTHING ELSE UNDER THE SUN!" I'm more aware of things that are wrong with me, like my knees, bowel patterns (yes some of us start to pay attention to that), urine color when I'm sick, and some other things, but then it just hit me that we all die, so what's the point. I don't mean that in a defeatist-type of way, I mean that in a seriously-you-have-the-rest-of-your-life-so-why-not-enjoy-it-within-reason kind of way.
Those videos are nice wake-ups for you to take better care of yourself, mostly so you can actually enjoy life, but I wouldn't obsess over the dude with MRSA sitting next to me on a plane or something. Whatever. My shoes probably have MRSA and VRE all over the bottoms.