Why You Get Hot Flashes
And What You Can Actually Do About Them

If you've ever felt your hands go ice cold, and then within 20 seconds felt like someone turned your internal furnace on full blast, you already know exactly what I'm talking about. That cold-to-hot cycle is one of the most disorienting experiences of perimenopause, and it happened to me five or six times a day at my worst.

What I didn't understand at the time was why it was happening. My doctor wasn't much help. So I went looking for answers myself, and what I found changed everything.

What's Actually Happening in Your Body

Hot flashes are caused by a drop in estrogen, which affects your hypothalamus, the part of your brain that regulates body temperature. When estrogen fluctuates, your hypothalamus gets confused. It thinks your body is overheating when it isn't, and it triggers a cooling response: blood rushes to the surface of your skin, you sweat, and you feel intensely hot.

The cold hands that come just before a hot flash, called a cold flash, are actually part of the same process. Your body is preparing for what it thinks is a temperature emergency.

What Made Mine So Much Worse

Once I started paying attention, I noticed clear triggers that ramped up my hot flashes:

• Caffeine, especially in the afternoon
• Alcohol, even just one glass of wine
• Sugar spikes from processed food
• Stress, even low-grade background stress
• Poor sleep from the night before
• Synthetic fabrics that trapped heat

None of these caused my hot flashes, but every single one made them more frequent and more intense.

What Actually Helped Me

I want to be honest with you: I never got rid of my hot flashes completely. But here's what I want you to really hear: the transformation was dramatic. I went from five or six intense hot flashes every single day, to going entire months without one. And on the odd stretch where they returned, it would be one or two a day lasting less than a minute. That is a completely different life. If you are in the thick of it right now, I want you to know that level of change is possible. Here's what made the biggest difference for me:

1. Changing how I ate

Switching to a Keto Green approach, high protein, lots of vegetables, cutting processed sugar, had a noticeable impact within a few weeks. Blood sugar stability is directly connected to hot flash frequency.

I also upped my protein significantly, which helps with muscle maintenance and keeps blood sugar more stable throughout the day. And I stopped eating after 6pm. That one change alone made a noticeable difference in my sleep and in the intensity of my night sweats.

2. Targeted supplementation (this one took me the longest to figure out)

I want to be real about this part. I spent a lot of money throwing supplements at my symptoms before I landed on what actually worked. And what I figured out is that supplements are not a replacement for the lifestyle piece. They work together.

I already had my foundational supplements in place: vitamins, omega-3s, and probiotics. What I added specifically for hot flashes and night sweats were two doTERRA products.

The first was doTERRA Phytoestrogen. I took it consistently and over time I noticed the fluctuations starting to smooth out. My hot flashes went from five or six a day down to one a day, lower intensity, and then eventually just once in a blue moon. My night sweats faded too, though honestly I think cutting out alcohol played a role in that as well.

The second was a topical essential oil blend called ClaryCalm. I apply it daily and it became a non-negotiable part of my routine. It's one of those things I didn't fully appreciate until I ran out of it.

I know some women have questions about doTERRA products and whether they're worth it. I had those exact same questions. I put together a full page explaining why I chose this line and what I actually use, because the story behind it matters as much as the products themselves.

Read about the supplements I use →

3. Consistent movement

Three days a week of HIIT strength training plus a daily walk made a real difference. Exercise helps regulate body temperature over time and reduces the severity of hot flashes for many women.

4. Stress management, seriously

I know this sounds like a cliché. But cortisol and estrogen are in direct competition during perimenopause. Every time your cortisol spikes, your already-low estrogen takes another hit. Managing stress isn't optional. It's foundational.

Why Phytoestrogens Actually Work

I want to take a second to explain what phytoestrogens actually are, because I think when women understand the science behind something it helps them make a more informed decision about whether it is right for them.

Phytoestrogens are plant-based compounds that have a chemical structure similar enough to estrogen that they can bind to estrogen receptors in the body. When your own estrogen levels drop during perimenopause and post-menopause, phytoestrogens can step in and have a mild estrogen-like effect, which is exactly why they can help smooth out some of the hormonal fluctuation that drives hot flashes.

What I find really interesting is that phytoestrogens work differently depending on how much estrogen you already have. When estrogen is high, they can actually have an anti-estrogenic effect. When estrogen is low, as it is in perimenopause and post-menopause, they become more estrogenic. Your body essentially uses them where it needs them most.

This is one of the reasons I chose doTERRA Phytoestrogen specifically. It is a targeted supplement designed to support hormonal balance through plant-based compounds, and the consistency piece matters. It took a few weeks before I noticed a real shift, which lines up with what the research shows. These are not instant fixes. They work with your body over time.

The Bottom Line

Hot flashes are not something you just have to white-knuckle through. They are a signal from your body that something needs to change, and the good news is that lifestyle shifts can make a significant difference.

You don't have to do this alone, and you don't have to figure it all out at once. One small change at a time is exactly how I did it.

If you're noticing your hot flashes are also coming with heart palpitations or a racing pulse, there's something worth understanding about the connection between hot flashes and cardiovascular health. I wrote about it here: Hot Flashes and Your Heart: What the Research Actually Says