by the nobel committee this year nobel prize in physiology or medicine jointly to with caitlin sir peter rockliffe and greg gets amounts. this year's winners of one of the world's highest profile awards worked for the most part independently of each other the announcement caught them unawares. and at that point i think it was just so surreal and i sort of had this out of body feeling of just great appreciation and i got to start so thrilled to share this with all the people who have met meant so much to me in my life well to life to all in a little bit surprised at this morning yeah hi i have a deep sleep 1st. i could wake up eventually but by the time i got to the phone it was too late and so i said to myself i wonder if this is somebodies idea of a bad joke in the middle sort of the 3 scientists were chosen for their work on how cells sense and adapt to oxygen the gas is a key part of converting food to energy but oxygen levels can fluctuate dramatically in the body. when you exercise climb to high elevations or are pregnant the oxygen levels available for metabolism go up and down to keep funct