One of the best articles by Mercola and Ori Hofmekler:
The Pain to Power Principle
The lack of food apparently triggers a survival mechanism that helped humans endure times of food scarcity. And along similar lines, intense exercise bouts benefit you by triggering a primal mechanism that enabled early humans to endure extreme physical hardship.
These inherent mechanisms are part of the human survival apparatus. When triggered, they help you compensate by increasing energy production efficiency, improving body composition, increasing strength and increasing the capacity to resist fatigue and stress. Your survival requires challenge and action. The biological rule is as plain as it's bold:
Actively Survive or Passively Die!
It is now known that the human body evolved to better survive when challenged properly. Both your brain and muscle develop only when adequately stimulated. Yes, we often need to go through painful experiences to develop a skill. That's how soldiers, athletes, doctors and musicians are made. Pain comes with the territory. And the lack of mental or physical hardship can lead to stagnation and degradation.
Indeed, when passive, sedentary or "moderately" challenged, your body goes into waste. And the consequences include muscle degradation, excessive fat gain, chronic disease and a shortened life span.
http://fitness.mercola.com/sites/fi...ent-inevitable-muscle-wasting-as-you-age.aspx
The Pain to Power Principle
The lack of food apparently triggers a survival mechanism that helped humans endure times of food scarcity. And along similar lines, intense exercise bouts benefit you by triggering a primal mechanism that enabled early humans to endure extreme physical hardship.
These inherent mechanisms are part of the human survival apparatus. When triggered, they help you compensate by increasing energy production efficiency, improving body composition, increasing strength and increasing the capacity to resist fatigue and stress. Your survival requires challenge and action. The biological rule is as plain as it's bold:
Actively Survive or Passively Die!
It is now known that the human body evolved to better survive when challenged properly. Both your brain and muscle develop only when adequately stimulated. Yes, we often need to go through painful experiences to develop a skill. That's how soldiers, athletes, doctors and musicians are made. Pain comes with the territory. And the lack of mental or physical hardship can lead to stagnation and degradation.
Indeed, when passive, sedentary or "moderately" challenged, your body goes into waste. And the consequences include muscle degradation, excessive fat gain, chronic disease and a shortened life span.
http://fitness.mercola.com/sites/fi...ent-inevitable-muscle-wasting-as-you-age.aspx
