Intellectual workers, for your information! Intermittent Fasting unbelievably improves brain function: boosts mental clarity, concentration, learning, memory and creativity.

From Quora:

I’ve seen noticeable improvements in cognitive function – feeling more sharp with increased mental energy.

Did you hear about Silicon Valley “biohackers”? It’s a community of high tech workers who fast for better brain functioning. BBC:

…on the days that they are not eating, they get more done in the office. They experience an enhanced sense of mental agility and are better able to focus on their work.

From Business Insider:

In Silicon Valley, whole groups of self-optimization-obsessed biohackers meet to collectively break their fast once a week, and executives at companies like Facebook say fasting has helped them lose weight and have more energy.

More and more Silicon Valley executives are using Intermittent Fasting as a means to improve health and boost productivity. Let’s listen to Phil Libin, CEO All Turtles, former CEO Evernote (from his interview to The Guardian):

There’s a mild euphoria. I’m in a much better mood, my focus is better, and there’s a constant supply of energy. I just feel a lot healthier. It’s helping me be a better CEO. Getting into fasting is definitely one of the top two or three most important things I’ve done in my life.


Intermittent Fasting improves your brain power by creating more brain cells. According to Dr Mark Mattson, a professor of Neurology at John Hopkins University, fasting has been shown to increase rates of neurogenesis in the brain. Neurogenesis is the growth and development of new brain cells and nerve tissues. Higher rates of neurogenesis are linked increase brain performance, memory, mood, and focus. One particular study showed that intermittent fasting (the researchers used a 16:8 schedule in the study) stimulated the production of new brain cells.

IF boosts production of an important protein called Brain-Derived NeuroTrophic Factor (BDNF) which boosts memory, improves mood and learning. BDNF protects existing brain cells, and also governs and stimulates the formation of new neurons and the development of synapses and new connections (lines of communication) within the brain. Higher levels of BDNF lead to healthier neurons and better communication processes between these neurological cells (source). Low levels of BDNF are linked to dementia, memory loss and other brain processing problems (source). BDNF has been shown to play a role in neuroplasticity, which allows the brain to continue to change and adapt. It makes your brain more resilient to stress and more adaptable to change. Intermittent fasting has been shown to boost BDNF by 50–400%! From Newsweek:

The brain cells of mice who regularly fast may grow more than usual once they get food again, according to research presented at the Society for Neuroscience’s annual meeting in November and first reported by New Scientist. One particular protein may be behind the growth: brain-derived neurotrophic factor (BDNF). In humans, BDNF may be involved in learning and memory. Levels of this protein tend to decline as a person gets older, especially if someone is diagnosed with a disease that can affect cognitive functions like Alzheimer’s. However, levels of this protein increase by up to 50 percent in mice that have been fasting.

IF works wonders not alone but together with carbohydrates removal, so please read the book “Grain Brain: The Surprising Truth about Wheat, Carbs, and Sugar – Your Brain’s Silent Killers” (epub). The book describes both the aspects very intriguingly – MUST READ!!! And now, please watch these short videos:


IF is not only a cognitive enhancer now – it can forestall cognitive decline in the future. It protects neurons from genetic and environmental stress factors during aging (source), increases insulin sensitivity, which benefits neurons that stimulate the production of enzymes that help cells cope with stress and fight against disease (source), can reduce issues with brain function and neurodegenerative disorders caused by inflammation (source), affects energy and oxygen radical metabolism, and cellular stress response systems, in ways that protect neurons against genetic and environmental factors to which they would otherwise succumb during aging (source).

A good review on the evidence suggesting dementia is a result of brain insulin resistance. Give your brain a break from glucose by feeding it ketones (if you don’t know what ketones are, please read that):

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