Hormone therapy is not FDA approved to treat mood, but a new retrospective study of 260 women who started it for hot flashes or vaginal symptoms found that severe mood symptoms fell from 62.3 percent to 24.6 percent. The design can't prove cause, so it supports asking the question, not expecting a fix.
"I don't feel like myself anymore." I hear some version of that sentence most weeks, usually right before someone starts crying in my office. It isn't weakness.
Mood symptoms affect up to 68 percent of women during the menopause transition, according to The Menopause Society. That means low mood, irritability, anxiety, and a mental exhaustion that doesn't match anything else going on in your life.
Whether hormone therapy helps has been unclear for years. A study published in September 2026 in Menopause adds something useful.
What The New Study Found
The study, published in Menopause, looked at 260 women in a real clinical setting. All of them started hormone therapy for FDA-approved reasons, such as hot flashes or genitourinary symptoms. Mood wasn't the reason they started.
Before treatment, 62.3 percent had severe mood symptoms. After treatment, 24.6 percent did. The women who began with the most severe symptoms improved the most.
The researchers also found that response didn't differ by psychiatric history, age, menopause stage, or antidepressant use. The press release adds that psychological and sleep symptoms improved across the group.
Why Estrogen & Mood Are Connected
Estrogen interacts with serotonin, the neurotransmitter that antidepressants target. This relationship has been described in the research for decades, including in a PubMed review of estrogen-serotonin interactions.
That makes the finding plausible on physiological grounds, not only statistical ones. When estrogen shifts or falls, a system involved in mood shifts with it.
Mood changes that don't match your life circumstances deserve a hormone question, not only a stress question.
What This Study Can & Can't Tell You
This was a retrospective observational study. There was no placebo group and no randomization, so it can't show that hormone therapy caused all of the improvement. Sleep, other treatment, or simply time could have played a part.
What it does give us is a consistent pattern in a real-world sample, with the biggest benefit landing on the women who needed it most. That tracks with what I see in practice.
Hormone therapy also isn't right for everyone. Whether it fits you depends on your history, your symptoms, and a conversation with your prescriber.
Why "it's probably stress" is an incomplete answer
In practice, mood changes tend to get filed under stress or getting older. An antidepressant gets added, and nobody asks whether hormones are part of the picture too.
If you've been told your mood symptoms are probably unrelated because you're already on an antidepressant, or because you're not quite in menopause yet, this study suggests that reasoning is weaker than it sounds. Antidepressant use and menopause stage didn't change who improved.
Stress, sleep, and a hard season of life can all affect mood, and they can sit alongside a hormonal shift. It doesn't have to be one or the other.
When it's worth raising hormones with your prescriber
Bring it up when:
- Your mood has changed in a way that doesn't match your life circumstances
- The changes started alongside shifts in your cycle, sleep, or night sweats
- You've been treated for mood but still don't feel like yourself
A written timeline helps. Note when the changes began, what shifted around the same time, and what you already take, including supplements.
Slow down and look wider when:
- Your thyroid has only been checked with a TSH
- You're also dealing with fatigue or sleep disruption that hasn't been explained
- You take medications and aren't sure how they would interact
Thyroid changes, poor sleep, and perimenopause can each affect mood and energy, and they can show up together. Do not stop or change any medication on your own.
Ready to see whether hormones belong in the conversation?
The Why Am I So Tired Assessment won't diagnose a mood disorder and it won't replace an evaluation with your prescriber. It will help you see whether a hormonal shift is part of what you're carrying, so your next conversation starts with more than a hunch.
Frequently Asked Questions
Does hormone therapy help mood symptoms in menopause?
It may. In a 2026 retrospective study of 260 women who started hormone therapy for hot flashes or genitourinary symptoms, severe mood symptoms fell from 62.3 percent to 24.6 percent. The study was observational, so it can't prove that hormone therapy caused the change.
Is hormone therapy FDA approved for mood or depression?
No. Its FDA-approved uses include hot flashes and vaginal symptoms, and mood is not one of them. The women in the study started it for those approved reasons, and mood change was observed alongside.
Can hormone therapy still help if I already take an antidepressant?
In the study, response to hormone therapy didn't differ by antidepressant use. That doesn't tell you what is safe or right for you. Any decision about combining treatments, or changing a medication, belongs with your prescriber.
Can perimenopause cause mood changes before my periods stop?
Mood symptoms are reported across the menopause transition, affecting up to 68 percent of women according to The Menopause Society. In the new study, response didn't differ by menopause stage, which suggests being "not quite in menopause yet" doesn't rule hormones out.
How do I know if my mood changes are stress or hormones?
Often you can't tell on your own, and it can be both. Useful clues include whether the changes began alongside shifts in your cycle, sleep, or night sweats, and whether they match what is happening in your life.
What should I bring to an appointment about menopause mood changes?
Bring a written timeline of when the mood changes began, what else shifted around the same time, and every medication and supplement you take. Also note which thyroid tests you've had, because a TSH alone doesn't show the whole thyroid picture.
Dr. Erin Ellis, ND
Dr. Erin Ellis, ND, is the founder of Hope Natural Health and a licensed Naturopathic Doctor with more than nine years of clinical experience specializing in women's hormone health. After overcoming cancer, Dr. Ellis made it her life's mission to help women find the root cause of why they don't feel like themselves. She believes "normal" lab results are only the beginning of the conversation - not the end - and is known for taking a deeper, investigative approach to hormone, thyroid, gut, and metabolic health.