Heart lesson

Maybe I'm weird but anytime I hear the word surgery, I associate it as a huge and serious matter. I always assumed that after surgery, you'd need to stay in the hospital for quite some time before you'd be allowed to go home. I mean come on, they are slicing you open! Well, that's not always the case. Apparently most surgeries for pace-makers aren't deemed as "major". Also, people often go home the next day, if not even on the same day!