A study that came out a couple years ago found that fasting also increased brown fat yes exactly it does. I think that that could be one of the reasons at least wow super interesting do we know if acutely being immersed in cold water boosts energy expenditure like  do we have seen an increase in our resting energy expenditure when we're in in cooler temperaturesYeah exactly yeah I think that is a really good question why not this kind of like acute extreme exposure to the cold will make your body also your metabolism much faster because at reacting also to stressors so you will have this increased metabolism because you are faster metabolism increased energy expenditure sorry yeah is there?