Help protect children from gaming harms.

Take our survey

Please or to access all these features

AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Dh changes when a full moon

206 replies

Touristtrainstuffedtothebrim · 31/07/2026 23:30

Not in a werewolf way and i’m not a woo type of person, but I’ve noticed a few times (going to have to start writing it down) that on the build up
to a full moon, he can be very moody and not nice sometimes and the day after-few days after, he’s back to himself, but much nicer-kinder

It’s happened too many times now to feel like a coincidence

Am I the one going mad?

OP posts:
SunwaysSystems · 02/08/2026 16:10

There must be a reason for the invention of the word lunatic!

My guess - and it's just a guess - is that it's more likely to be based in misogyny - 'women go crazy once a month, let's make that a name for actual madness' - just like hysteria, killing witches, etc.

I mean you could argue that a "wandering womb" makes women have uncontrollable extreme feelings, and that must be for a reason because why else would they have the word? I don't think evidence backs this up, though.

NattyKnitter116 · 02/08/2026 16:16

pinkandwhiteroses · 01/08/2026 15:32

I work with animals and the full moon definitely impacts their behaviour. Just as they're often impacted by the air pressure before a storm, for example.

It's definitely a "thing" to be impacted by your environment.

It also affects plant growth.

things grow quicker if you plant them at the waxing moon, slower if you plant them at the beginning of a waning moon.
just because there’s no data doesn’t mean it isn’t true.

I spent years telling doctors about the positive side effects of Prozac on my pmt and later my hot flushes. They always said that couldn’t be true as no data blah blah etc. lo and behold if you read the prescriber leaflet now it’s actually prescribed for pms.

so yeah data is great but the lack of it doesn’t discount the mass of human experience over thousands of years - it may just mean it either hasn’t been researched or the research wasn’t using the right parameters.
data can be very misleading as well as enlightening

Persephonia1966 · 02/08/2026 16:17

Cherrysoup · 02/08/2026 15:08

And yet it affects tides and aren’t we mostly water?! 🤣

I am not trying to say it has a definite effect, but it’s remarkable how many emergency service personnel remark on the full moon having an effect. Maybe pure coincidence, I mean they deal with all sorts of crazy/tragic occurrences daily.

Well, New moons affect the tides the most. Full moons are a bit meh. Except that they are the most visible.
We are water however I am not convinced there is enough water in our bodies to be impacted the way large oceans are. Especially given it's contained in tiny amounts in cells and what not. Not sloshing around like a big sea. Eg a proper big sea, The Mediterranean contains about 3,750,000 km3 of water and has a tidal range of about 20-40cm.

I'm not saying it's impossible humans could be affected by the moon, or that it could cause miniscule movement in the water in our bodies such that it affects us. Just that there isn't a y known mechanism for that to happen despite lots of research. We don't know everything about the world to be sure. But it's still further in the "wooo" spectrum than the idea that changes in the weather that affect us physically can affect us behaviourally (hot humid weather, windy weather etc).

MyDarlingRose · 02/08/2026 16:22

Cherrysoup · 02/08/2026 15:08

And yet it affects tides and aren’t we mostly water?! 🤣

I am not trying to say it has a definite effect, but it’s remarkable how many emergency service personnel remark on the full moon having an effect. Maybe pure coincidence, I mean they deal with all sorts of crazy/tragic occurrences daily.

This shows you don’t understand biochemistry. The tidal forces depend on scale, distance and free‑moving water, and none of those conditions exist inside the human body. Biochemically, the water in you is not behaving like an ocean as it’s chemically locked in place, tightly regulated and far too small a system for lunar gravity to matter.

The Moon does pull on you, but the difference in gravitational force across your body is billions of times too small to move any water inside you. And biologically, your water isn’t free to slosh around it’s bound inside cells, membranes and proteins that exert forces vastly stronger than lunar gravity

okeydokeymokey · 02/08/2026 16:44

MyDarlingRose · 02/08/2026 16:22

This shows you don’t understand biochemistry. The tidal forces depend on scale, distance and free‑moving water, and none of those conditions exist inside the human body. Biochemically, the water in you is not behaving like an ocean as it’s chemically locked in place, tightly regulated and far too small a system for lunar gravity to matter.

The Moon does pull on you, but the difference in gravitational force across your body is billions of times too small to move any water inside you. And biologically, your water isn’t free to slosh around it’s bound inside cells, membranes and proteins that exert forces vastly stronger than lunar gravity

you're suggesting lunar energies must be some kind of measurable scientific phenomenon to have an effect. how about you think just in terms of spiritual or another kind of invisible energy that exerts an influence. there are plenty of things science can't explain, or can't explain yet. Discoveries being made all the time. Clear from the comments here how many people have noticed themselves or others or people at work or wherever being affected.

Cherrysoup · 02/08/2026 16:57

MyDarlingRose · 02/08/2026 16:22

This shows you don’t understand biochemistry. The tidal forces depend on scale, distance and free‑moving water, and none of those conditions exist inside the human body. Biochemically, the water in you is not behaving like an ocean as it’s chemically locked in place, tightly regulated and far too small a system for lunar gravity to matter.

The Moon does pull on you, but the difference in gravitational force across your body is billions of times too small to move any water inside you. And biologically, your water isn’t free to slosh around it’s bound inside cells, membranes and proteins that exert forces vastly stronger than lunar gravity

This shows you don’t understand humour.

HeronWading · 02/08/2026 17:01

FlipFlopVibe · 02/08/2026 07:19

Because trying to measure aggressive, rowdy, violent individuals on the streets isn’t exactly easy to collate. It’s based on qualitative accounts of officers out there every day who experience it. It’s absolutely a thing.

But collating statistics on extra arrests, extra reported crimes and extra psychiatric admissions, or length of psychiatric inpatient stays, is easy, as they are documented as a matter of course, and this is what all the studies and the meta-analyses of those studies have looked at. Or are you saying that police on the beat notice more anti-social behaviour and crime at full moon, but for some reason it never translates into extra arrested or crime reports?

Flannelfeet · 02/08/2026 18:00

Grendel7 · 02/08/2026 14:57

You have had rain?? Where do you live.. I want some rain!!

Central scotland. Hang the washing out because its a gorgeous morning then when its just about dry "BOOM" soaked 😢.

11AndCounting · 02/08/2026 20:34

okeydokeymokey · 02/08/2026 16:44

you're suggesting lunar energies must be some kind of measurable scientific phenomenon to have an effect. how about you think just in terms of spiritual or another kind of invisible energy that exerts an influence. there are plenty of things science can't explain, or can't explain yet. Discoveries being made all the time. Clear from the comments here how many people have noticed themselves or others or people at work or wherever being affected.

Why would there be more/different "lunar energies" during a full moon?

"Solar energy" would make more sense, no?

I feel as though a lot of this belief in the supernatural powers of the moon is grounded in a lack of knowledge about the moon and its relationship to Earth and the tides, tbh.

FlipFlopVibe · 02/08/2026 21:13

HeronWading · 02/08/2026 17:01

But collating statistics on extra arrests, extra reported crimes and extra psychiatric admissions, or length of psychiatric inpatient stays, is easy, as they are documented as a matter of course, and this is what all the studies and the meta-analyses of those studies have looked at. Or are you saying that police on the beat notice more anti-social behaviour and crime at full moon, but for some reason it never translates into extra arrested or crime reports?

Yes because extra disorder doesn’t equal extra officers, it’s the same number of officers dealing with it and they can only arrest so many people, they’re always running at maximum anyway. Getting extra officers for major events is hard, they aren’t going to get more for a full moon every month!
A lot of it will be more words of warning been given or the level of violence is more extreme but still remains just the one arrest

11AndCounting · 02/08/2026 21:33

FlipFlopVibe · 02/08/2026 21:13

Yes because extra disorder doesn’t equal extra officers, it’s the same number of officers dealing with it and they can only arrest so many people, they’re always running at maximum anyway. Getting extra officers for major events is hard, they aren’t going to get more for a full moon every month!
A lot of it will be more words of warning been given or the level of violence is more extreme but still remains just the one arrest

But why wouldn't reports if crime increase either?

If more crime was occurring during the full moon, you would expect more crimes to be reported - whether or not arrests are promptly made. There's no increase in the amount of crimes reported, though - just like there's no increase in the number of hospital admissions.

okeydokeymokey · 02/08/2026 21:40

https://pmc.ncbi.nlm.nih.gov/articles/PMC1444800/

here's one study that found a link

HeronWading · 02/08/2026 21:56

okeydokeymokey · 02/08/2026 16:44

you're suggesting lunar energies must be some kind of measurable scientific phenomenon to have an effect. how about you think just in terms of spiritual or another kind of invisible energy that exerts an influence. there are plenty of things science can't explain, or can't explain yet. Discoveries being made all the time. Clear from the comments here how many people have noticed themselves or others or people at work or wherever being affected.

Superstition and confirmation bias. It’s not complicated.

11AndCounting · 02/08/2026 22:34

okeydokeymokey · 02/08/2026 21:40

https://pmc.ncbi.nlm.nih.gov/articles/PMC1444800/

here's one study that found a link

That study had a tiny sample size and analyzed a brief period of time - failing to account for that the full moons during the period they studied tended to fall on the weekend, when crime rates are generally higher.

Larger, longer term studies, and various metastudies (e.g., analyses of of all the different studies) have consistently shown that there is no increase.

Omgheslikethat · 02/08/2026 23:33

11AndCounting · 01/08/2026 03:36

The full moon does modestly reduce sleep quality, which can make people a bit grouchier.

But crime rates and ER admissions are so easy to measure that any real behavioural impact would be obvious — and the evidence is somewhere between "non-existent" and "extremely thin".

Hrft but I think the evidence issue is that they maybe measure numbers rather than behaviours.

So a non full moon night, 5 people come in, with standard problems and normal behaviours and dealt with accordingly. Full moon, you get the weird and wacky, you might only get 4 instead of 5 but you're left scratching your head with odd behaviours.

ProudClare · 02/08/2026 23:36

My Great Uncle was a psych nurse, he qualified in 1938 which shows how old he would be. And he said that eveyone always tried to swap their shifts away from the full moon.

Theres a slight uptick in babies being born at full moon too. I was. (Leo moon!)

11AndCounting · 03/08/2026 00:04

Omgheslikethat · 02/08/2026 23:33

Hrft but I think the evidence issue is that they maybe measure numbers rather than behaviours.

So a non full moon night, 5 people come in, with standard problems and normal behaviours and dealt with accordingly. Full moon, you get the weird and wacky, you might only get 4 instead of 5 but you're left scratching your head with odd behaviours.

But researchers have actually broken down admissions by type, including acute psychiatric episodes and behavioral crises, rather than just blanket numbers. "Weird" cases are spread evenly accross the lunar cycle - some people just notice and remember them more when on full moon nights, due to superstition and confirmation bias.

Honestly, what do you think is different about the moon on full moon nights? This is all so whacky.

11AndCounting · 03/08/2026 00:06

ProudClare · 02/08/2026 23:36

My Great Uncle was a psych nurse, he qualified in 1938 which shows how old he would be. And he said that eveyone always tried to swap their shifts away from the full moon.

Theres a slight uptick in babies being born at full moon too. I was. (Leo moon!)

Theres a slight uptick in babies being born at full moon too.
No, there isn't. Just a other false superstition.

FlipFlopVibe · 03/08/2026 07:17

11AndCounting · 02/08/2026 21:33

But why wouldn't reports if crime increase either?

If more crime was occurring during the full moon, you would expect more crimes to be reported - whether or not arrests are promptly made. There's no increase in the amount of crimes reported, though - just like there's no increase in the number of hospital admissions.

Crimes are just a fraction of what police deal with, anti-social behaviour, mental health issues, social fallout. It all goes up

Lindylou55 · 03/08/2026 11:05

My daughter works in the Public Sector and they dread working back shift/nightshift day/night before during and after a full moon. She says the majority of their "clients" are completely nuts during that time.

11AndCounting · 03/08/2026 19:37

FlipFlopVibe · 03/08/2026 07:17

Crimes are just a fraction of what police deal with, anti-social behaviour, mental health issues, social fallout. It all goes up

Police forces are not any busier during the full moon, full stop.

I can understand why people believed in the magical powers of the moon in ancient times, when they thought the moon emitted its own light and grew and sharnk over time, but its nutty to me that people in the modern age, who know about the solar system, still think the surface of a rock being more or less in the shade profoundly alters people's state of mind.

FlipFlopVibe · 03/08/2026 19:58

11AndCounting · 03/08/2026 19:37

Police forces are not any busier during the full moon, full stop.

I can understand why people believed in the magical powers of the moon in ancient times, when they thought the moon emitted its own light and grew and sharnk over time, but its nutty to me that people in the modern age, who know about the solar system, still think the surface of a rock being more or less in the shade profoundly alters people's state of mind.

Right ok you win, you know all about every single area of the emergency services, the NHS and mental health provisions and completed statistical analysis on all aspects of their business, clearly you have spoken to the moon itself by this point.
Have you considered changing your username to Galileo??

ThatCyanCat · 03/08/2026 20:06

FlipFlopVibe · 03/08/2026 19:58

Right ok you win, you know all about every single area of the emergency services, the NHS and mental health provisions and completed statistical analysis on all aspects of their business, clearly you have spoken to the moon itself by this point.
Have you considered changing your username to Galileo??

Well this one kind of swings both ways. If it were true, there would be empirical and quantifiable data proving it, especially when so many people claim it. You're telling her she can't possibly have all the information, but you're the one with the hypothesis so it's on you to prove it. And so far, there doesn't seem to be any empirical proof despite all these people insisting it's true and they observe it all the time. It should be easy to prove in those circumstances if it's real.

You can't complain that she doesn't have enough information to disprove it when you don't have enough information to prove it; she could say exactly the same thing back to you. You're making the assertion so you have to prove it. Presumably you do know "all about every single area of the emergency services, the NHS and mental health provisions and completed statistical analysis on all aspects of their business", so... evidence?

11AndCounting · 03/08/2026 20:07

FlipFlopVibe · 03/08/2026 19:58

Right ok you win, you know all about every single area of the emergency services, the NHS and mental health provisions and completed statistical analysis on all aspects of their business, clearly you have spoken to the moon itself by this point.
Have you considered changing your username to Galileo??

You're confusing my passing familiarity with a large body of studies amd meta analysis on a topic with me having conducted it myself.

You're making claims that not only are not supported by evidence but are contradicted by it. At their core, they are also very stupid and childlike claims, too.

FlipFlopVibe · 03/08/2026 20:25

11AndCounting · 03/08/2026 20:07

You're confusing my passing familiarity with a large body of studies amd meta analysis on a topic with me having conducted it myself.

You're making claims that not only are not supported by evidence but are contradicted by it. At their core, they are also very stupid and childlike claims, too.

You’re massively overthinking it, grown adults in professional roles have all noticed, the thread is full of them. I couldn’t care less about the data you desperately need, it’s just a lighthearted debate, chill out

Swipe left for the next trending thread