Hormones and Mental Health: Why Your Mood Might Feel Different Throughout the Month
Have you ever had a week where your anxiety suddenly feels louder, your patience is nonexistent, concentrating feels impossible, and everything seems just a little more overwhelming, only to feel more like yourself again a few days later?
If you menstruate, those shifts may not be entirely random.
Mental health is complex, and hormones certainly are not responsible for every change in mood, anxiety, attention, or emotional regulation. But growing research suggests that hormonal fluctuations throughout the menstrual cycle can influence how some people feel emotionally and cognitively. For people who are particularly sensitive to these changes, the difference can be significant.
And these shifts are not limited to the days before your period. Hormonal changes occur throughout the menstrual cycle and across larger reproductive transitions, including puberty, pregnancy, postpartum, and perimenopause.
Understanding that connection can provide an important piece of context for your mental health, especially if you have ever wondered, Why do I feel like a completely different person depending on the week?
First, Let’s Talk About Hormones and the Brain
When we talk about reproductive hormones, estrogen and progesterone tend to get most of the attention. While these hormones play important roles in the reproductive system, their effects are not limited to reproduction.
Hormonal fluctuations interact with systems involved in mood, cognition, attention, and emotional regulation. Researchers have also explored interactions between reproductive hormones and neurotransmitter systems such as dopamine and serotonin (Kocijan et al., 2025).
This is one reason it may be more accurate to think about hormonal sensitivity rather than simply having “good” or “bad” hormone levels.
Two people can experience similar hormonal changes and have very different emotional experiences. For some people who menstruate, normal fluctuations may barely register. For others, particular phases of the menstrual cycle may be associated with noticeable changes in anxiety, irritability, mood, concentration, energy, or emotional sensitivity.
Your Mental Health May Not Feel Exactly the Same Throughout Your Cycle
A menstrual cycle involves continual changes in estrogen and progesterone.
Although we often hear about a “28 day cycle,” real menstrual cycles vary considerably from person to person. A typical cycle can generally be understood through several phases: menstruation, the follicular phase, ovulation, and the luteal phase.
Estrogen and progesterone are relatively low around menstruation. Estrogen then generally increases during the follicular phase and peaks around ovulation. Following ovulation, progesterone rises during the luteal phase before both estrogen and progesterone decline as the body approaches the next menstrual period (Carter et al., 2026).
For some people, those changes are accompanied by shifts in mental health.
Premenstrual symptoms can include irritability, anxiety, depressed mood, difficulty concentrating, sleep changes, social withdrawal, and other emotional and physical symptoms (American College of Obstetricians and Gynecologists [ACOG], n.d.).
That does not mean that experiencing anxiety before your period automatically means your hormones are “imbalanced.” It also does not mean that every emotional experience during the premenstrual phase should be dismissed as hormonal.
Instead, your cycle may be one of several factors influencing how easy or difficult it feels to manage emotions, stress, attention, and existing mental health symptoms at a particular time.
Why Does Anxiety Sometimes Feel Worse Before a Period?
For some people, anxiety becomes noticeably more intense during the days leading up to menstruation.
You might notice that worries you could normally put into perspective suddenly feel much more urgent. Maybe you become more sensitive to conflict, find yourself overthinking interactions, feel physically restless, or have a harder time using coping skills that normally work pretty well.
This can become especially confusing when there is a recognizable pattern:
“Why am I suddenly struggling this much when I was doing fine last week?”
Sometimes the underlying stressor has not changed. Your capacity to cope with it may feel different.
Hormonal changes can occur alongside physical discomfort, disrupted sleep, changes in energy, and other premenstrual symptoms, all of which can affect emotional wellbeing. Anxiety and depressive symptoms may also worsen around menstruation for people who already experience these conditions (ACOG, n.d.).
Recognizing that pattern does not make the anxiety less real. Instead, it can give you additional information about when you may be particularly vulnerable to it.
PMS, PMDD, and Premenstrual Exacerbation Are Not the Same Thing
This distinction is important.
Many people experience some degree of physical or emotional change before menstruation. When recurring symptoms are significant enough to interfere with everyday life, they may meet criteria for premenstrual syndrome, or PMS (ACOG, n.d.).
Premenstrual dysphoric disorder (PMDD) involves more severe cyclical mood symptoms and can significantly interfere with relationships, work, school, and daily functioning.
There is also another experience that receives less attention: premenstrual exacerbation, or PME.
With PME, an existing condition such as depression or anxiety is present throughout other parts of the month but becomes noticeably worse during the premenstrual phase.
In other words, there can be an important difference between:
“I primarily experience these mental health symptoms during a particular portion of my cycle”
and
“I experience anxiety throughout the month, but it becomes significantly harder to manage before my period.”
Understanding your own pattern can be helpful when discussing symptoms with both mental health and medical providers.
ADHD Can Enter the Picture, Too
The relationship between ADHD and reproductive hormones is an especially interesting and still developing area of research.
Some people with ADHD report that attention, executive functioning, emotional regulation, and even the perceived effectiveness of ADHD medication seem to change throughout their menstrual cycle.
Emerging research provides some support for this experience. Recent reviews have found evidence of menstrual cycle related changes in inattention and other ADHD symptoms, particularly during phases involving declining estrogen. At the same time, researchers emphasize that the evidence base is still relatively small and more rigorous, inclusive research is needed (Carter et al., 2026; Kocijan et al., 2025).
This may help explain an experience I often hear some people with ADHD describe:
“There are weeks when my systems work, and then suddenly none of them work anymore.”
Tasks may feel harder to initiate. Concentration may become more difficult. Emotional reactions might feel stronger. The strategies that usually help you stay organized may suddenly require much more effort.
That does not mean ADHD is caused by hormones. ADHD is a neurodevelopmental condition. Rather, hormonal fluctuations may be one factor that influences the intensity of symptoms for some people with ADHD.
This is also an area where we need to be particularly cautious about sweeping claims. Research examining ADHD across the menstrual cycle and reproductive lifespan remains limited, and historically, research has not always adequately represented the experiences of people AFAB (Kocijan et al., 2025).
And Then There’s Perimenopause
Hormones and mental health do not stop interacting when menstrual cycles begin changing.
Perimenopause is the transition leading up to menopause. During this time, estrogen and progesterone can fluctuate considerably, periods may become less predictable, and physical symptoms such as hot flashes and sleep disruption can emerge.
Mental health changes can also occur.
ACOG reports that approximately 4 in 10 women experience mood symptoms during perimenopause that resemble PMS, including irritability, low energy, tearfulness, mood changes, and difficulty concentrating. Unlike typical premenstrual symptoms, however, these experiences may no longer follow a predictable monthly pattern. Research also suggests that the risk of depression increases during the menopausal transition (ACOG, n.d.).
Anxiety may become more noticeable as well, and sleep disruption related to perimenopause can make managing stress and emotions even more difficult (ACOG, 2025).
For people with ADHD, perimenopause may present another layer of complexity. Emerging literature has begun examining whether fluctuating and declining estrogen could contribute to changes in attention, executive functioning, and emotional regulation during this transition, but research specifically examining ADHD during menopause remains limited (Kocijan et al., 2025).
This matters because someone entering perimenopause might suddenly find themselves thinking:
Why can't I concentrate anymore?
Why does my anxiety feel different?
Why am I forgetting everything?
Why do the strategies I've used for years suddenly feel less effective?
These experiences deserve to be taken seriously rather than automatically dismissed as stress, aging, or “just hormones.”
Tracking Patterns Can Be Surprisingly Helpful
One of the simplest ways to begin understanding whether your mental health changes throughout your cycle is to track it.
Instead of only tracking the first day of your period, you might briefly note things like:
Mood
Anxiety
Irritability
Energy
Sleep
Concentration
ADHD symptoms
Emotional sensitivity
Physical symptoms
Major stressors
Over time, you may begin to notice patterns that are difficult to see when you are living through them day by day.
Maybe anxiety consistently increases several days before your period. Maybe executive functioning becomes noticeably more difficult. Maybe you experience one particularly difficult week followed by a dramatic improvement once menstruation begins.
Or maybe you discover that there really isn't a consistent relationship between your cycle and your symptoms.
That is useful information too.
Tracking symptoms can also give you something more concrete to bring to a therapist, psychiatrist, primary care provider, or OB GYN rather than having to rely on trying to remember how you felt several weeks ago.
Knowing There Is a Pattern Does Not Mean You Have to Just Deal With It
Recognizing that hormones may be influencing your mental health is not the end of the conversation.
It can be the beginning of a more informed one.
Depending on what you are experiencing, support might involve psychotherapy, psychiatric care, medical evaluation, medication, changes in coping strategies during particularly vulnerable portions of your cycle, or collaboration between multiple providers.
A therapist cannot determine your hormone levels or diagnose a medical or gynecological condition simply based on changes in your mood. Similarly, significant mental health symptoms should not automatically be attributed to hormones without considering other possible explanations.
But therapy can help you understand the patterns you are experiencing, develop strategies for periods when symptoms intensify, address anxiety or depression that exists alongside hormonal changes, and reduce the shame that can come from feeling inconsistent or unpredictable.
Your Experience Is More Than “Just Hormones”
There is an unfortunate tendency to use hormones as a way of minimizing the emotional experiences of people AFAB.
Understanding the relationship between hormones and mental health should do the opposite.
Your emotions are real. Your anxiety is real. Your difficulty concentrating is real. And if those experiences become more intense during certain portions of your menstrual cycle or during transitions such as perimenopause, recognizing that pattern can provide valuable information about what your brain and body may need.
You do not have to determine whether something is “hormonal” or “psychological” before asking for help. Often, human beings are much more complicated than that.
Your mental health exists within a body, and understanding how the two interact can be an important part of understanding yourself.
References
American College of Obstetricians and Gynecologists. (n.d.). Premenstrual syndrome (PMS). American College of Obstetricians and Gynecologists
American College of Obstetricians and Gynecologists. (2025). Stress makes me feel so anxious now that I’m menopausal. Is this normal? American College of Obstetricians and Gynecologists
American College of Obstetricians and Gynecologists. (n.d.). Mood changes during perimenopause are real. Here’s what to know. American College of Obstetricians and Gynecologists
Carter, M., Hollingdale, J., Ashwood, K. L., Tchanturia, K., & Asherson, P. (2026). Menstrual health and attention deficit/hyperactivity disorder (ADHD) symptoms: A scoping review. BMC Psychiatry. Article via PubMed Central
Kocijan, L., et al. (2025). ADHD and sex hormones in females: A systematic review. Journal of Attention Disorders. Article via PubMed Central