https://looksgud.com/blog/weird-problems-only-guys-understand/
https://www.realmenrealstyle.com/common-issues-men-have/
https://alpham.com/struggles-only-guys-understand/
https://www.parents.com/parenting/better-parenting/advice/25-things-only-parents-of-boys-will-understand/
https://en.wikipedia.org/wiki/Puberty