Who cares about what I've done? The past is the p- User ZebediahKillgraveSpy, in the Involuntary Celibacy subreddit, 06 Sep 2017
TIL Women carry the DNA from casual sexual partners for the rest of their lives User thunderstruck316, in the Today I Learned (TIL) subreddit, 13 Nov 2016
Male microchimerism in women without sons: quantitative assessment and correlation with pregnancy history. - PubMed User 2274ts, in the Men Going Their Own Way subreddit, 26 May 2016
TIL that women carry the DNA from past sexual partners for life. - "CONCLUSIONS: Male microchimerism was not infrequent in women without sons. - Possible sources of male microchimerism include ... sexual intercourse." User Fang88, in the Today I Learned (TIL) subreddit, 03 May 2015