Pranayama warms the body regulates body temperature

We have just been experiencing one of the coldest time here in New Zealand, and Pranayama has kept me warm. The polar storm has bought us snow and icy cold winds and the houses in New Zealand are not well insulated, the icy wind is getting through the tiny gaps in the windows and it is hard and expensive to keep the house warm. I have always suffered from bad circulations and get cold easy, but since practising Pranayama I have been so much warmer. I do not feel the cold, in the same way, I use too. The cold wind is not getting into my bones any more, I am staying warm it is just amazing. I can not believe, how I am feeling warm while everyone around me is freezing. With Pranayama, Ujjayi, Suryabhedi or Suryanga pranayama breathing in through the right nostril, and the breath of fire, doing more of these pranayamas have made a marked difference in my body temperature keeping me warmer then I have ever felt. I also noticed that I have had no pains in my joints, even so in the past in these extreme weather conditions my joints would hurt. Its because my joints feel warmer and the cold does not penetrate me. The extent of benefits one can get from practising Pranayama is beyond words.