lanyon a bit. well that is our task. we're even feeling. tries to explain briefly to his students his method for overcoming the cold he's borrowed some elements from the ancient practices of tibetan monks others come for discoveries and physiology. believes that with proper breathing and special exercises a man can survive the extreme cold for up to two and a half hours. our body cells have a temperature limit no more than forty two degrees. therefore temperature flow is insufficient to warm the whole body but when the body is in a cold environment it requires a significant amount of heat. this heat can be produced outside of the cells and good then that the most suitable candidate for this role is the lungs were of the oehler sacks can produce large amounts of heat. but that's. according to renata the lungs help to produce additional heat when there's a lack of oxygen known as hypoxia the process of burning body fat also generates heat. my first thought after the fall was to get up and run i wasn't about hurt i just told the muscles in my