Mirela Cernaianu, MD

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Mirela Cernaianu, MD Hormone Optimization Warrior 🧬
30+ yrs as an OBGYN & Menopause Specialist
Telling women the truth about menopause no one else will
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Dr. Mirela Cernaianu, or “Dr. C.” as her patients call her, opened her private practice, Hera Healthcare, so that she could provide compassionate and holistic medical care that reflects her own values. Women living in and around Westlake Village and Thousand Oaks, California, find that Dr. Cernaianu’s focus on their individual needs, and her willingness to take the time to know them, motivate them to achieve and maintain vitality and wellness. Dr. Cernaianu attended medical school at Carol Davila University of Medicine and Pharmacy in Bucharest, Romania. After completing her internship and residency training in obstetrics and gynecology at University Hospital Bucharest, she became a clinic instructor and then Assistant Professor in Obstetrics and Gynecology at University Hospital in Bucharest, Romania. After relocating to New Orleans, Dr. Cernaianu completed a residency in obstetrics and gynecology at Louisiana State University, then went on to achieve multiple board certifications, as well as a Fellowship in Anti-Aging, Regenerative and Functional Medicine. She’s board certified by:
American College of Obstetrics and Gynecology
American Academy of Anti-Aging Medicine/Regenerative Medicine
Association for the Advancement of Restorative Medicine
American Board of Integrative and Holistic Medicine
After practicing obstetrics and gynecology at a clinic in Florida, Dr. Cernaianu moved to California, where she served as the Chair of the Obstetrics and Gynecology Department at St. John’s Regional Medical Center in Oxnard, California. She worked at the Clinicas del Camino Real in Ventura County for more than a decade, where she proudly provided holistic health services to those who relied on the clinic for their medical care. She started her own practice so that she could focus on truly personalized care for each individual patient. When she’s not helping patients, Dr. Cernaianu is dedicated to practicing and teaching yoga. She’s a 200-hour certified yoga teacher and is working to achieve her 300-hour certification.

10/22/2026

A little pink spotting on a Tuesday morning can feel too small to mention, even three years into hormone therapy.

It is easy to tell yourself it is probably nothing, or that it can wait until your next visit. That quiet voice is worth a second look, because this is one of the moments Dr. Mirela wants you asking questions instead of guessing.

Watch the video for when bleeding on hormones is expected and when it means talking with the doctor who prescribes them right away. You are allowed to ask, even when it feels small.

If you have ever noticed spotting or another symptom you almost kept to yourself, what made you finally speak up? Share it below so another woman reading feels braver about reaching out.

10/21/2026

Five things I would say to you across the desk if I were not worried about how they landed.

1. Losing weight in perimenopause without replacing your hormones is close to a lost cause. That is the ugly truth and I would rather you hear it from me than spend another two years proving it.
2. Restaurant food is processed food. Not the drive-through. The nice place with the linen napkins. If you did not cook it, somebody built it to be eaten.
3. Your cravings were engineered. Sugar, fat and salt get combined in specific ratios by people with food scientists on staff, because those ratios light up your brain like a switchboard. You did not lose your willpower. You are up against a budget.
4. Eat less and move more was advice for a body you no longer have. Your estrogen moved where the fat gets stored. Your muscle is leaving. Your cells handle sugar worse than they did. The same effort buys you less than it used to, and that is arithmetic, not failure.
5. There is no perfect diet, and I am not going to stand here and design you one. Most of us want comfort, consistency and convenience, and any plan that pretends otherwise falls apart by week three.

None of that is me telling you to give up. It is me telling you to stop spending your effort on the part that was never the lever.

If you have been doing everything right and watching the scale sit still, I see you. You have been working very hard on the wrong half of the problem.

I share menopause advice on my Substack every week.

Comment SUB26 and I'll send it over.

And tell me below, which one of the five stung the most?

10/21/2026

I started my mom on estrogen at 72, and at 88 her heart is still going strong. Estrogen plays a real role in how your blood vessels and cholesterol behave, so ask a menopause-trained doctor how hormone therapy fits your heart health.

10/21/2026

Many women I see in their forties describe the same night. They are worn out by 9 p.m., and then their mind starts racing as soon as they lie down.

That wired but tired feeling has a lot to do with cortisol, your main stress hormone. Cortisol is built to help you survive a real threat, like a near miss on the freeway. But your brain can read a packed calendar and a phone that never goes quiet as the same kind of danger.

When your brain thinks you are in danger, it makes a practical choice. It turns down the signals that tell your ovaries to make hormones, because a baby can wait while you are running from something. Over time, that can mean less estrogen, less progesterone, and less testosterone.

Progesterone is the calming hormone your body makes after you ovulate, and it is often the first one to drop. Losing it first means you lose some of your calm first.

After 40, your ovaries are already slowing down on their own, because you are in perimenopause, the years before your last period. When your brain keeps sending the stress signal on top of that, your hormones drop even faster.

That is why women who eat well, lift, and take their supplements can still feel stuck. All that good work is like filling a tank with a hole in it, and the stress signal is the hole.

Rest is how your body gets proof that it is safe, and that proof helps the signal start to change. Rest can be simple. You can sit in silence, do a hobby with no goal, or let yourself be bored without picking up your phone. Each one gives your brain a break from watching for threats.

For a woman holding everything together, making time to rest can feel impossible. Many women wait to rest until the list is done, and the list never gets done.

An hour that belongs to nobody else can feel selfish at first. For your hormones, it matters as much as the food on your plate and the weights in your hands.

I share menopause advice on my Substack every week.

Comment SUB26 and I will send you the link to my free Substack, where I explain how stress and rest shape your hormones after 40.

10/20/2026

Of the four things I watch most closely as women age, the brain comes first. Ahead of vision, ahead of mobility, ahead of the heart.

People assume that is sentimental. It is the opposite.

Looks do not matter if you do not know where you are or who you are. You can have good skin and strong legs, and if the brain goes, none of the rest of it is yours to enjoy.

There is a second reason, and it is the one almost nobody says out loud.

Hormone loss that goes on long enough does not stay inside your head. It comes out as irritability, as a shorter fuse, as a bitterness that was never part of your personality. And it slowly drives away the exact people you are going to need around you in twenty years. The friends, the family, the ones who would have shown up.

So when a woman tells me she has become someone she does not recognise, I do not treat that as a mood problem. I treat it as the first system on the list.

Four things are working against your brain in this window.

Your s*x hormones are falling, and estrogen is doing real structural work up there. Your cortisol is running high for longer than it was built to. Your sleep is breaking into pieces, which is when the brain does its clearing. And the small vessels that feed it are not delivering the way they used to.

Not one of those is a character flaw. All four are measurable.

If you are the woman who has started writing everything down because she no longer trusts herself to remember it, I see you. That is not who you are becoming. That is a system asking for support.

I share menopause advice on my Substack every week.

Comment SUB26 and I'll send it to you.

10/20/2026

Feeling off on the pill isn’t something you have to accept. Your doctor can walk you through options that work with your own hormones.

10/20/2026

Two months of mood notes can tell your doctor more than one bad afternoon in an exam room.

When a woman sits across from me and says she feels like a different person lately, the first thing I want to know is when it happens. A mood that rises and falls in a pattern can point toward your hormones, while a mood that never lifts may need a wider look. Many women I meet have never been asked about the timing at all.

A notebook or the notes app on your phone is enough to start. Each night, give your mood a number from one to ten and add a word about how you slept. If you still have periods, mark which day of your cycle it is, counting the first day of your period as day one.

After two months, bring those notes to your appointment. Ask whether checking your hormone levels makes sense alongside any other tests your doctor wants to run. Your notes give that conversation something real to work from, so your doctor can see the pattern too.

Waiting on a log is never the right move when daily life feels unmanageable, so please reach out to your doctor right away if that is where you are.

If this sounds familiar, what was the first change you noticed in yourself? Share it in the comments so other women reading can see they are not alone.

10/19/2026

Women come in and tell me nothing changed. Same food, same routine, same life. Then inside a few months the weight arrived, or the fatigue did, or a rash showed up that nobody can explain.

Nothing had to change. The cup finally overflowed.

Every day you take in a certain amount of chemical load, and every day your body clears a certain amount. While the clearing keeps up, you feel fine and you have no idea any of it is happening. The moment the load outpaces the clearing, it spills.

Which is why this almost never arrives as one tidy symptom. It arrives as weight that will not move and brain fog and aching joints and a gut that stopped behaving, all in the same season, in a woman whose life looks exactly like it did last year.

The habits above are the taking-in side. That is the part you control today.

One warning about the clearing side, because this is where women get hurt.

Your liver works in stages. The first stage takes a chemical and makes it reactive, which has to happen, and which also means that for a short window it is more damaging than what you started with. The second stage catches that and packages it so your body can get rid of it.

A cheap detox pushes the first stage hard and does nothing for the second. You end up making the dangerous version faster than you can clear it. That is why a cleanse so often leaves women feeling worse than when they started.

So if you take one thing from this, lower what is going in before you try to speed anything up. That part has no downside.

I share menopause advice on my Substack every week.

Comment SUB26 and I'll send it over.

And tell me below, which of these seven surprised you?

10/19/2026

Scary headlines and doctors who weren’t trained in hormone therapy have left many women with antidepressants and sleeping pills instead of answers. Ask a menopause-trained doctor whether hormone therapy fits your health history.

10/19/2026

Women rarely come to me with one problem. They come with nine, picked up over about four years, and each one was looked at by a different doctor.

Almost everything on that list is caused by something else. If you start where the pain is loudest, you spend a year treating a symptom while the cause keeps making new ones.

This is the order I work in, and the order is the treatment.

→ First, we measure the full picture, including the hormones nobody checks unless you ask. Every choice after this depends on knowing where you are.

→ Next come the s*x hormones. They are the biggest change your body has been through, and fixing them can clear some of your list on its own.

→ The thyroid waits until after estrogen, because the two are tangled together and treating the thyroid first can miss the real cause.

→ Cortisol, your stress hormone, usually comes last. It tends to settle once the biggest stress on your body is gone.

→ Then we build muscle by lifting heavy things. Nobody can prescribe it, and it holds the rest of this in place for the next thirty years.

→ Last, we test again on a schedule, because that is the only way to know if any of this worked.

I see the wrong order most often with the thyroid. A woman comes in tired, cold, gaining weight, and losing hair. Her thyroid numbers are a little off, so she starts a medication. Two years later she is still tired and still gaining, and now she is on a drug she may never come off. Nobody checked her estrogen, which was pulling her thyroid off track.

Cortisol works the same way. Working on it for years does little if the hormone change underneath is never treated. That is like bailing water out of a boat without finding the hole.

Going in order lets you fix the few causes instead of managing all nine forever.

Please do not stop any medication on your own. Bring this order to your doctor and ask where you are in it.

This takes months, and anyone who promises it in one visit is selling something. You should start to feel the difference long before the last step.

I share menopause advice on my Substack every week.

Comment SUB26 and I’ll send it over.

Address

910 Hampshire Road, Suite A
Westlake Village, CA
91361

Opening Hours

Monday 9am - 4:30pm
Tuesday 9am - 6:30pm
Wednesday 9am - 5:30pm
Thursday 9am - 5:30pm
Friday 9am - 4:30pm

Telephone

+18053799110

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