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The concept of going without food and in some cases, water, goes against our beliefs, however if we begin to look at this topic from a perspective of how our ancestors ate, this certainly begins to make more sense.
For thousands of years, our ancestors only ate food intermittently, when there was food available to eat. They would often go days at a time with no food at all. Nowadays, we can find food at just about every corner. We can find fast, cheap and nutritionally deficient food at our fingertips. If you live in a city, it is likely that you can have food delivered to your door. It is flaunted in our face at all times, one might wonder, so why wouldn’t I eat it if it’s available?
The Benefits Of Fasting
Mark Mattson, a neuroscientist at the National Institute on Aging and professor at John Hopkins University says that for optimal health our bodies need to have occasional breaks from eating.
Even intermittent fasting can boost our brain function, ward of neurodegenerative disorders like Alzheimer’s and Parkinson’s and can hold the key to longevity by speeding up the regeneration of our cells. Mattson discusses all of this and more in the Ted Talk posted below called, Why Fasting Bolsters Brain Power.
“It’s been known for a long time that one way to extend the lifespan of laboratory animals is simply to reduce their [calorie] intake,” he says.
The lifespan of lab rats has been increased by up to 40 percent by feeding them less. Mattson suggests humans could do the same by adopting a lifestyle of intermittent fasting.
“We started looking at the effects of energy restriction on the brain in the context of age-related neuro-degenerative disorders and found we could slow down … Alzheimer’s and Parkinson’s,” Mattson said.
Mattson said fasting improves brain function by challenging it, “Your brain responds to the challenge of not having food by activating pathways that help it cope with stress and resist disease.”
Like vigorous exercise, intermittent fasting promotes neuron growth, strengthens synapses and increases production of new nerve cells. Fasting also increases the number of mitochondria in nerve cells, which improves cognition, memory and mood, and increases the ability of nerve cells to repair DNA, he says.
When you fast, your metabolism shifts so that you start burning fats, he explains. “Every time you eat a meal the energy is stored in your liver in the form of glycogen [sugar]. That’s always tapped into first. It takes 12 hours before you deplete the glycogen stores in your liver.”
“When you eat three or four meals a day you never deplete the glycogen stores in your liver. You can’t start burning fat until those stores are depleted.”
When you burn fats you produce ketone bodies, which are very good for your brain, he says.
From an evolutionary perspective, fasting simply makes sense, “Our hunter-gatherer ancestors would not have survived unless their brain was functioning at a high level when they were hungry. If you’re hungry and haven’t found food, you better figure out how to find food. You don’t want your brain to shut down.”
Ways To Fast
According to Mattson, there are two basic ways to experience the benefits of calorie restriction, to either eat less for each meal or reduce the frequency of meals, such as with intermittent fasting.
- Water only fasts involve two to three days a month of 2 weeks a year.
- Alternate day fasting, less than 600 calories or no food every other day.
- A 5:2 diet, eating normally 5 days a week and less than 600 calories during the other two days.
- Time restricted fasting daily, food is only consumed during a 4-8 hour window.
Fasting Is For The Mind, Body & Soul
There is so much more to fasting than simply not eating. Many of us are completely unaware of just how addicted to eating we all are. It’s difficult to actually recognize this addiction until we go without food, in doing so, alot of emotions come up and normally, most of the time without even realizing it we escape by eating. When you fast, you essentially have nowhere to turn, no escapes, nothing but you and yourself. This provides an excellent opportunity to really sit with your emotions and process them accordingly rather than running to the comfort of food to make us feel better. Various religions around the world have included fasting in their scriptures and have done so for thousands of years. Fasting is really an ancient process and has many spiritual levels to it.More Information On Fasting
A Brief Look At The History Of Fasting Through Various Religions
Intermittent Fasting For Women, What You Need To Know To Avoid Hormonal Imbalance
Study Shows How Fasting For 3 Days Can Regenerate Your Entire Immune System
The Complete Guide To Fasting & Reversing Type 2 Diabetes – A Special Interview With Dr. Jason Fung
A Fasting Diet Could Reverse Diabetes, Repair & Repair The Pancreas, New Research Shows
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