While we are talking about appreciating the human body and its miraculous system...in case you wanted to listen to something from about 500 days ago...we did a 3 part series into why we say a blessing after going to the bathroom (Asher Yatzar)
https://torah2711.buzzsprout.com/836899/4082087-episode-155-if-it-ain-t-broke-asher-yatzar-part-1
https://torah2711.buzzsprout.com/836899/4096517-episode-156-under-the-hood-asher-yatzar-part-2
https://torah2711.buzzsprout.com/836899/4112030-episode-157-the-connection-is-critical-asher-yatzar-part-3