Oh… dear.

There's a man out there in the world who either believes that people die each night then come back to life in the morning (yikes), or that the uterus has some kind of “off” switch for sleeping… or BOTH, andhun.

That’s not… right.

What’s worse – he actually tried to undermine thewomanhe was talking to during the concerning exchange.

Good lord.

Look, we get that periods – and the uterus in general – can beconfusing. But it is the reproductive organ in which an actual human baby grows, so we feel there are some things men should really know about *how it all works* by their mid-20s.

Starting with the very simple factthat periods don’t sleep.

(Thank you, sir, for reminding us why giant night time pads exist).

Watch: If your period was a person. Post continues after video.

In fact, it seems he thought his female friend was, erm, broken because she bled throughout the night.

He then told her she was both dumb AND crazy to assume ~a man~ would know about periods.

…Because men only need to know how to use power tools and change tyres, not a silly thing like how the female anatomy works.

Duh.

Behold, courtesy of X (formerly Twitter) user @farahgamo, who posted the alarming message thread:

Image: X.

Body shuts down.

Mate.

We just...

We can't.

It's clear he had selective hearing during biology lessons and desperately needs to be schooled.

Enter the internet:

That’s why it’s so hard to wake up in the morning,, we gatta Resurrect. OURSELVES

— Pink Lemonade???? (@Ham_n_cheese_) May 4, 2019

"He called you crazy for expecting him to know very basic knowledge of the human body?" - @MaddieBurress

"I’m dumb af & even I knew that. This guy smh." - @ryberardi_

You mean to tell me that all this time I coulda just slept all week and avoided this mess

— Stansa Stark (@yikes_itsaut) May 4, 2019

Ah yes, the miracle of creation… I give you “The Solar Powered Uterus”

— Andy Carolan (@AndyCarolan) May 8, 2019

This is why we need better sex education, periods should not be a taboo subject but most men have no idea about them and have never been instructed to consider the practicalities of having them.

— Le Dave (@mad_caesar) May 8, 2019

Tbf it looks like his body shuts down during the day.

— djhazydave (@djhazydave) May 8, 2019

"dam...... so ive been prepping my skin for overnight repair and taking my vitamins at night for optimal absorption for NOTHING?!!!!!" - @popstarpaci

Send him this pic.twitter.com/dqGFo3RcMd

— konor knowles (@itsconorbitch) May 4, 2019

My sister has an ex that though we only bled when we went to pee ????????

— howaboutno (@mylittlemiata) May 4, 2019

"This is almost as bad as the guy who thought we could 'hold it in like pee'" - @caterrible

The world is a... wild place, hey?

Feature image: Getty; Twitter (now X).

This article was originally publishedin May 2019 and has since been updated.