TIL a study showed that if you have an itch on the left side of your body, you can relieve it by looking into a mirror and scratching the right side of your body (and vice versa) User dand11, in the Today I Learned (TIL) subreddit, 12 May 2018
TIL if someone has an itch on the left side of their body, they can relieve it by looking into a mirror and having someone else scratch their right side User Zilreth, in the Today I Learned (TIL) subreddit, 29 Dec 2017
TIL that a 2013 study showed that if you have an itch on the left side of your body, you can relieve it by looking into a mirror and scratching the right side of your body (and vice versa). User LaunchOurRocket, in the Today I Learned (TIL) subreddit, 29 Jun 2017
TIL that scratching an itch on the wrong side of your body would actually help if you look in a mirror User acdccc, in the Today I Learned (TIL) subreddit, 13 Nov 2016
TIL that if you have an itch on the left side of your body, you can relieve it by looking into a mirror and scratching the right side of your body (and vice versa). User brain_rays, in the Today I Learned (TIL) subreddit, 07 Oct 2016