Most people know about hot flashes. But very few realize that perimenopause can affect the brain, too.

As estrogen and progesterone fluctuate during the menopausal transition, women can experience changes in mood, sleep, motivation, emotional regulation, and the brain's

reward system. And sometimes those changes don't look like a hormonal problem at all. They are behavior changes and no one is talking about it.

In my practice as a licensed Marriage and Family Therapist I started noticing certain patterns with my clients that were already noticing hormonal fluctuations, but they were not necessarily connecting the dots. At firs these behaviors were being presented as something completely isolated, since they don’t look like what you’d expect.

They look like “Why am I doing this?”

They look like behavior that you don’t recognize and can’t really explain. These behaviors changes aren't proof that you're in perimenopause. But if they're new, noticeably stronger, or happening alongside other changes in your cycle, sleep, mood, or energy, they're worth paying attention to.

Here are three behaviors I want more women to know about:

1. You're drinking more alcohol than you used to

Maybe you used to have a glass of wine occasionally. Now you're reaching for it several nights a week. Or perhaps one glass has become two.

And maybe you're telling yourself: “I'm just stressed.” And you probably are.

Midlife can be an extraordinarily demanding season. Careers, children, aging parents, marriage, financial pressures, and a thousand daily responsibilities can leave very little emotional bandwidth. But there's another piece worth considering.

During perimenopause, hormonal fluctuations can affect the brain systems involved in reward, stress, and emotional regulation. At the same time, sleep disruption is extremely common.

And when you're exhausted and stressed, your brain naturally looks for something that provides quick relief. For some women, that becomes alcohol.

The important question isn't simply: “Am I drinking too much?”

The real question is: “Has my relationship with alcohol changed?”

If you're drinking more frequently, using alcohol primarily to regulate your emotions, or finding it increasingly difficult to stop at the amount you intended, that's worth taking seriously.

Not because you're failing. Because something may have changed.

2. You're shopping for the feeling—not the thing

This one can be harder to recognize. I'm not talking about buying a new pair of shoes because you need them.

I'm talking about opening Amazon, an online clothing store, or your favorite shopping app because you're bored, stressed, lonely, or emotionally depleted.

You browse... You find something... You buy it! And for a few minutes... you feel better!

That's the important part. The object isn't necessarily the reward. The anticipation and purchase can be.

The brain's reward system is heavily involved in motivation, pleasure, anticipation, and reinforcement. Hormonal changes during perimenopause may interact with these systems, particularly when combined with stress, poor sleep, or mood changes.

So, if you suddenly find yourself shopping more frequently—or spending money primarily because purchasing something gives you a little emotional lift—don't automatically label yourself as irresponsible.

Instead, get curious.

Ask: “What feeling am I trying to change right now?”

Because sometimes the shopping isn't really about shopping. It's about relief.

3. You're craving more excitement—or taking bigger risks

This is the one people are least likely to connect to perimenopause.

For some women, this might look like gambling.

Online betting… Casino games… Scratch-offs.

Or spending more money than they normally would because they enjoy the anticipation and excitement.

For someone else, it might look less dramatic:

• impulsive purchases

• suddenly needing constant stimulation

• chasing novelty

• making unusually spontaneous decisions

• seeking experiences that provide a stronger emotional “rush”

Again, this does not mean perimenopause causes gambling or risky behavior. And it certainly doesn't mean that every woman who experiences these behaviors has a hormonal problem. But when a behavior is new or escalating, it's worth asking why.

Because the brain's reward system doesn't only respond to pleasure.

It responds to anticipation, novelty, uncertainty, and reward.

And for some women, those systems may feel different during the menopausal transition.

So, what do these three behaviors have in common?

Alcohol.

Shopping.

Risk-taking.

They can all function as quick sources of reward or emotional relief. And this is where perimenopause gets particularly interesting.

We tend to think about hormones as something that affects the reproductive system. But estrogen receptors are found throughout the brain.

As hormone levels fluctuate, the effects can extend well beyond periods and hot flashes.

That doesn't mean you can look at a woman who is shopping too much or drinking more and say, “That's perimenopause.” You can't. Human behavior is much more complicated than that. But it does mean that if you're noticing a cluster of changes—perhaps your periods are becoming unpredictable, your sleep has deteriorated, you're more irritable, your anxiety has increased, and suddenly you're reaching for alcohol, shopping, or other forms of stimulation more often—it may be worth considering the bigger picture.

One important caveat

These behaviors can have many causes, including stress, depression, anxiety, sleep deprivation, medication effects, substance use, or other medical or psychological conditions.

If drinking, gambling, spending, or another behavior feels increasingly difficult to control—or is creating problems in your finances, relationships, work, or health—don't chalk it up to perimenopause.

Get help.

Perimenopause may be part of the picture, but it shouldn't become an explanation that prevents you from addressing a potentially serious problem.

The takeaway

Perimenopause isn't just about hot flashes.

It's a major neuroendocrine transition that can affect sleep, mood, cognition, stress regulation, and reward processing.

So, if you don't quite feel like yourself lately, don't immediately assume you've suddenly become lazy, irresponsible, impulsive, or “crazy.”

Start by getting curious. What changed?

And perhaps most importantly: What else changed at the same time?

Because sometimes the behavior you've been judging yourself for may be one small piece of a much bigger story.