@Demo318 That's a pretty awesome video. As I learn more, it's absolutely astonishing how well integrated and systemically optimized the human body is.

My wife and I were actually talking about the advances in modern medicine just in the past couple decades. I had some heart issues so I got to spend several days in the hospital. The equipment used to assess my heart was pretty amazing. I joke about the tiny scar on my wrist from my heart cath procedure. I say I should get a tattoo next to it saying "This way to my heart" cause it's so subtle.

Like you mentioned, the biggest take-away is gratitude though. I'm fortunate to live in an age where all this knowledge and technology is available.