TIL 'old person smell' is actually caused by the chemical 2-nonenal. Older people secrete this chemical through their skin at a much higher rate than younger people.

http://mentalfloss.com/article/51596/what-causes-old-person-smell



Submitted March 24, 2015 at 12:58AM by Nugatorysurplusage http://www.reddit.com/r/todayilearned/comments/301nn2/til_old_person_smell_is_actually_caused_by_the/