https://www.livescience.com/34095-biggest-mysteries-human-body.html

https://www.grunge.com/58868/things-human-body-still-cant-explained/

https://www.thehealthy.com/bodies/human-body-mysteries/

https://news.northeastern.edu/2018/10/10/everything-the-human-body-does-is-guided-by-chemistry-we-dont-fully-understand-yet/

https://gizmodo.com/8-things-we-simply-dont-understand-about-th