
The Nightly Brain Reset You Can't Afford to Miss
We know sleep is vital. It’s right up there with eating your vegetables and regular exercise.
But let’s be honest—many of us don’t prioritize it as we should.
We’re up in the middle of the night binge-watching our favorite shows or tossing and turning, struggling to sleep. Then, when we wake up feeling irritable and exhausted, we shrug it off as just another part of our busy lives.
However, new research reveals that this casual attitude towards sleep could be doing a number on our brains.
And it’s not just about feeling groggy the next day—we’re talking about your brain’s ability to form and retain memories.
Scientists at Cornell University made a groundbreaking discovery about what happens in our brains while we sleep. A mouse model found that during sleep, a crucial part of the brain called the hippocampus—where memories are stored—goes “silent.”
Now, silence in the brain might not sound like a good thing. But it turns out, this period of quiet is precisely what our brains need to prepare for the next day’s memories.
Here’s how it works: During the day, neurons in specific areas of the hippocampus (CA1 and CA3) are busy creating memories from our experiences.
But these hardworking cells can’t keep going indefinitely. They need to “reset” so they can be ready to create new memories the next day.
That’s where sleep comes in. When we drift off to dreamland, these areas of the hippocampus go quiet, allowing the neurons to reset. It’s like closing up shop for the night so everything can be fresh and ready for business in the morning.
But, if we don’t get enough quality sleep, this reset process can’t happen properly. The result? Our brain’s ability to form and retain new memories is compromised.
This research helps explain why sleep is so crucial for learning and memory. It’s not just about feeling refreshed—it’s about giving your brain the downtime it needs to prepare for new information and experiences.
So, the next time you’re tempted to skimp on sleep, remember this: every hour of shut-eye is an investment in your brain’s ability to learn, remember, and function at its best.
Now, I know getting a good night’s sleep can be challenging. That’s why I want to share three supplements that can help improve sleep quality:
- Melatonin: This hormone naturally regulates your sleep-wake cycle. A small dose (0.5 to 3 mg) taken 30 minutes before bedtime can signal your body that it’s time to sleep.
- Magnesium: This mineral plays a crucial role in regulating neurotransmitters directly related to sleep. A typical dosage is 200 to 400 mg before bed, but start with a lower dose to see how your body responds.
- L-theanine: An amino acid found in tea leaves, L-theanine promotes relaxation without drowsiness. A typical dose is 200 to 400 mg about an hour before bedtime.
Remember, while these supplements can be helpful, they’re not a substitute for good sleep. Stick to a regular sleep schedule, create a relaxing bedtime routine, and keep your bedroom cool, dark, and quiet.
Your brain works hard for you all day long. Give it the nightly reset it needs, and you’ll be rewarded with better memory, sharper thinking, and improved overall health.
Sweet dreams!
P.S. THIS simple light trick unlocks better sleep and mood.
Source:
Karaba, L. A., Robinson, H. L., Harvey, R. E., Chen, W., Fernandez-Ruiz, A., & Oliva, A. (2024). A hippocampal circuit mechanism to balance memory reactivation during sleep. Science.

Written By Dr. Scott Olson, ND
Nearly 25 years ago, failed mainstream medical treatments left Dr. Olson in constant pain – and his health in ruins. And that’s when he did something REVOLUTIONARY. He began his career in medicine – and dedicated his life to uncovering the true, underlying causes of disease.
Through his innovative medical practices in Tennessee and Colorado, Dr. Olson has helped cure countless seniors from across America of arthritis… heart disease… diabetes… and even cancer. All without risky prescription drugs or painful surgeries.
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