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A physician conducted a decade-long experiment on the health effects of a ketogenic diet, using himself as the laboratory rat; he experienced improvement in insulin sensitivity, body fat, lipids, blood sugar, and other markers

A ketogenic diet requires carbohydrate and protein restriction, with 50 to 80 percent of calories coming from fats; this forces your body to shift toward using ketones as its primary fuel source, instead of glucose

Although your brain is more dependent on glucose than your heart, your liver can produce a ketone-like compound that your brain can efficiently use for energy

Scientists extended the lifespan of mice by 20 percent by suppressing the activity of just one gene that helps control metabolism and energy balance; this is further evidence that longevity is tied to insulin signaling

The best way to jumpstart your fat-burning/ketone-producing engine is by drastically reducing your consumption of sugar and grains, fasting intermittently, and maintaining a consistent exercise routine