Dramatically Spike BRAINPOWER with an 18 Hour Fast

author avatar Dr. Eric Berg 08/31/2023

Check out the benefits of fasting for your brain and find out how to boost your brainpower with intermittent fasting.

0:00 Introduction: Boost your brainpower with fasting

0:10 How to do the 18:6 fasting pattern

1:20 Ketones for your brain

3:40 Switching from glucose to ketones

4:58 Complications of running your brain on glucose

8:25 Benefits of fasting for your brain

11:37 A deeper look at the typical recommended diet

13:05 Check out my video on the best diet to optimize your brain health!

It always amazes me what fasting can do for your brain. To start seeing these incredible cognitive benefits, you have to fast for at least 18 hours a day.

With an 18:6 intermittent fasting pattern, you would fast for 18 hours and have a 6-hour eating window. This means no snacking while fasting. You can eat during your 6-hour window, but I recommend only two meals. If you are still hungry, add more fat at the end of your meals.

Ketones are very therapeutic for your brain. There are three ways to get your body to produce ketones:

1. Go on the keto diet

2. Fasting

3. Exercise

Many people have damage to their brains from chronic glucose exposure caused by a high-carb diet. Glucose is a poor fuel source for the brain. When you switch the brain’s fuel source from glucose to ketones, the ketones can bypass the damage and feed your neurons directly.

If you never switch to ketones, you are at a higher risk for diabetes and the complications that can come with diabetes, such as dementia, neuropathy, and diabetic autonomic neuropathy.

Diabetic autonomic neuropathy can manifest as:

• High pulse rate

• Exercise intolerance

• Orthostatic hypotension

• Gastroparesis

• Constipation

• Esophageal dysmotility

The potential benefits of fasting for your brain:

1. It helps slow down age-related brain decline and brain-related diseases

2. It allows the brain cells to get the fuel they need

3. It helps reduce inflammation in the brain

4. It helps stabilize neurons

5. It helps the nerves connect better

6. It supports genes that increase the repair action of neurons

7. It boosts antioxidants in certain parts of the brain

8. It causes autophagy, which recycles damaged proteins in the brain

9. It can help improve structures in the brain

10. It can help improve your mood

11. It supports your ability to learn and focus

12. It supports your memory

13. It helps improve your motor skills





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