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Why Does Brain Fog Happen During Perimenopause?

Do you ever walk into a room and forget what you even went in there for? Or wake up so exhausted you wish the day would end already… and it hasn’t even started?! Or maybe you just don’t feel like yourself anymore, and you’re worried that if it’s already this bad, what will menopause be like?

If this sounds familiar, you’re not imagining it.

Hormonal shifts start happening throughout the body and brain during perimenopause, with brain fog and fatigue at the top of the list of symptoms women experience during this new phase of life.

As estrogen declines, two big things happen:

• Women naturally begin losing muscle mass.

• The brain has less estrogen available to help produce energy.

Here’s where creatine fits in like the missing puzzle piece.

What the Research Says About Creatine and Muscle

Creatine is one of the most well-researched supplements for supporting muscle growth and strength training. Creatine provides your muscles with extra energy during workouts, helping you push harder and recover faster.

But it doesn’t just support your muscles (which are essential, especially as we get older). Scientists are now exploring how creatine also supports brain function, and the emerging research is fascinating.

What the Research Says About Creatine and Brain Fog

Every cell in your body needs energy to work well, especially your brain. Creatine helps recycle ATP, the molecule your cells use for quick energy. Supporting brain energy with creatine may help improve memory and reduce mental fatigue.

How Can You Support Yourself Now?

No two women experience perimenopause in the same way, but here are a few simple habits that can help support your body through this transition:

• Strength training, regularly. As we age it becomes even more important to build and maintain muscle. A couple of strength training sessions a week can do wonders for keeping muscles healthy, metabolism humming and the body as a whole resilient.
  
• Get your beauty sleep in. Sleep can be more difficult during perimenopause, but following routines and supporting your body’s natural sleep rhythms can help a lot.
• Consider creatine supplementation. Adding creatine to the routine can be beneficial for many women to help support muscle strength, energy production and cognitive health during this phase of life.

As always, check with your doctor before starting any new supplements.

Quality Makes All the Difference

Maybe, like me, you've tried creatine before and felt like it wasn't for you. I was so excited when I learned that it wasn’t that creatine was wrong; I just hadn’t found the one that truly honored the quality my body needed.

I first heard about how vastly the quality standard can vary between brands of creatine from Dr. Stacy Sims, whose work in women’s health and performance has been incredibly eye-opening for me. Her research inspired me to dig deeper into the growing body of research on creatine for women, and that’s ultimately what led me to try Momentous. I truly appreciate their focus on purity, quality sourcing, and transparent testing.

Grab your discount and give it a try! I can’t wait to hear how it supports you in this new but beautiful chapter of life.

References:

Maki, P. M., & Jaff, N. G. (2022). Brain fog in menopause: A health-care professional's guide for decision-making and counseling on cognition. Menopause, 29(6), 715–726.
Supports the discussion of brain fog and cognitive changes during perimenopause.

Forbes, S. C., et al. (2025). Creatine supplementation in women's health: A lifespan perspective. Nutrients, 17(1), 95.
Supports the discussion of creatine in women's health and emerging research on cognition.

Kreider, R. B., et al. (2022). International Society of Sports Nutrition position stand: Safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 19(1).