Life is stressful. Our bodies designed to withhold great amount of stress. As we all heard, whatever did not kill you makes you stronger!  It is not necessary to endure great stress in order to be stronger, statistics show, moderate stress is just enough for great improvements!

This article is a short overview of use of heat, cold, and other environmental factors to improve performance and wellbeing. Stress from cold and heat alteration such as extreme exposure to cold and heat is actually good for our health. It improves learning and memory, mood, increases neurogenesis, prevents muscle atrophy, and improves longevity. Big plus in using alteration of low and high temperatures is increase in immune health and resistance to various diseases and viruses.

Exposure to cold releases certain neurotransmitters into the brain, including Norepinephrine.  Norepinephrine is very important for memory, mood, vigilance, focus and attention. Lack of Norepinephrine equals depression. Cold showers are known to be used to treat depression and have mood enhancing capabilities. Norepinephrine has also its role in pain management, metabolism and inflammation. Studies show that this neurotransmitter can raise unbelievable 200-300% with cold immersion near 0 Celsius for just 20 seconds / 3 times a week!

Cold also activates cold thermo genesis, a way for the body to produce heat. The health benefits of cold thermo genesis are due to the activation of brown adipose tissue (BAT), a form of fat that burns regular fat for heat generation through fat oxidation. In other words, cold exposure increases body ability in burning fat for energy! Fat loss benefits, anyone?

lapland finland the ice

Heat Stress, on the other hand, triggers A Massive Release of Growth Hormone. You don’t need to take exogenous growth hormone. Sauna use can cause a robust release in growth hormone, which varies according to time, temperature, and frequency. For example, two 15-minute sauna sessions at 100°C (212°F) dry heat separated by a 30-minute cooling period resulted in a five-fold increase in growth hormone!

Here’s another surprise: increasing your core temperature for short bursts is not only healthful, it also:

  • dramatically improve performance,
  • increase efficiency of oxygen transport to muscles,
  • increase red blood cell count,
  • increase brain functions.

 The positive effects of heat acclimation on the brain include:

  • growth of new brain cells,
  • improvement in focus, learning and memory,
  • ameliorating depression and anxiety.

woman sauna


Short temperature stress is very beneficial not only for body wellbeing but also for wellbeing of our minds! The big plus is – there is no need to buy an expensive equipment. The only thing needed is a will to increase biological potential. At the beginning, changes in shower temperatures are enough to start slowly biohack your body. Always start from small changes and then build on it!

There is a lot more information about it on the web. Research it!

Even though it is impossible to know everything, it is always good to know a little about a lot!


The material on this blog is for informational purposes only. As each individual situation is unique, you should use proper discretion, in consultation with a health care practitioner, before undertaking the protocols, diet, exercises, techniques, training methods, or otherwise described herein. Consult a doctor before doing anything described in this post or on this blog.



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