About

Do You Think Their Periods Ever Synced Up? or Do You Think Their Menstrual Cycles Ever Synced Up? is a catchphrase used in a series of posts and image macros alongside images of groups of people who presumably spend a lot of time together, wondering if their menstrual cycles synced up because they spend so much time together. The earliest known memetic use of the phrase was posted to Tumblr in August 2022, gaining viral spread over the following months. The meme is similar to the I wonder if they explored each other's bodies format.

Origin

On August 23rd, 2022, Tumblr^[1] user 0sbrain posted an image macro of the cast of characters from Team Fortress 2 under the caption, "Do you think their menstrual cycles ever synced up?" garnering over 8,600 notes in a year (shown below). This is the earliest known example of the meme.

The theory that women's menstrual cycles synchronize when they spend a significant amount of time together has been observed and studied over the years and although some studies suggest it's to just a coincidence, there are many women who believe it to be a true phenomenon.^[2][3]

Spread

On August 28th, 2022, X^[4] user @honeyc0rpse posted an image of Stu and Billy from Scream writing, "do you think their menstrual cycles ever synced up," garnering over 12,000 likes in a year (shown below, left). Several new versions of the meme were posted to X^[5][6] that year. On March 19th, 2023, Redditor u/justapotatochilling posted a photograph of a cake with the Team Fortress 2 version printed on it to /r/tf2,^[7] garnering over 920 upvotes in a year (shown below, right).

On April 1st, 2023, Tumblr^[8] user queersturbate posted a version of the meme using an image of Light and L from Death Note, garnering over 61,000 notes in seven months (shown below).

On October 11th, Instagram^[9] user still_on_a_downward_spiral posted a version of the meme using an image of The Beatles, garnering over 284,000 likes in a month (shown below, left). On November 13th, X^[10] user @wahlinguini posted a version of the meme using an image from Persona, garnering over 2,000 likes in four days (shown below, right).

Various Examples

Search Interest

External References