Study finds being OUTDOORS helps you live longer
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Fasting is defined as the abstinence from consuming food and/or beverages for different periods of time. Both traditional and modern healthcare systems recommend fasting as a therapeutic intervention for the management of several chronic and non-infectious diseases. But to go further into this concept, researchers believe exercising whilst fasting can have major positive health outcomes and could help to boost your longevity.
Studies demonstrate amazing benefits to intermittent fasting alone but combining fasting with sprint training takes the benefits of each to a whole new level.
Combining the two raises growth hormone and makes you more insulin sensitive, which is the key to staying youthful and lean.
Working out before breakfast is another way of saying that you exercise during your intermittent fasting period.
An intermittent fast is the portion within the 24-hour clock that your body goes without food and has been shown to positively affect not only your waistline but also your longevity.
In a study published in the National Library of Health, exercise training and fasting and its impact on longevity was investigated.
“Exercising during a fasting state increases lipolysis in adipose tissue while also stimulating peripheral fat oxidation, resulting in increased fat utilization and weight loss,” began the study.
It continued: “During the fasting window the systemic levels of free fatty acids (FFA) and ketones are increased together with an activation of gluconeogenesis (from amino acids, glycerol and ketone bodies).
“Fasting also attenuates circulating insulin and insulin-like growth factor-1 levels and raises circulating glucagon levels due to hepatic gluconeogenesis.
“Fasting attenuates serum low-density lipoprotein-cholesterol, total cholesterol, triglycerides, while increasing high-density lipoprotein-cholesterol levels.
“Several studies demonstrated that fasting alters protein, lipid and glucose metabolism and associated hormonal responses.”
Dr Edward Ivimey-Cook, from the University of East Anglia’s (UEA) School of Biological Sciences said: “We know that reduced food intake increases the lifespan in many animals and can potentially improve health in humans.”
In another study published in the journal Proceedings of the Royal Society B, the effect of time-limited fasting on lifespan in roundworms was investigated.
“We looked at what happens in roundworms. Unlike us, they’re transparent, about 1mm long and live in the soil,” said Dr Ivimey-Cook.
“They don’t have bones, a heart, or a circulatory system. But they’re a classic model organism for studying the ageing process in biology because they do share many genes and molecular pathways that control development with humans.
“We found that fasting did indeed increase their lifespan.”
The hormonal benefits you get from exercising in a fasted state are related to the depleted muscle and liver glycogen stores that occur when you fast.
Doing cardio while intermittent fasting is fine, but your performance will hinge on how fat-adapted your body is.
If you’re new to fasting and exercise, you can expect your performance to drop a little; it can take up to six months for some athletes to fully adapt their endurance to this new fuel source.
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