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Tuesday, August 9, 2016

Tip: 3 Rules for Lifters Who Love Coffee | T Nation





Tip: 3 Rules for Lifters Who Love Coffee | T Nation

3. Know If You're a Fast or Slow Metabolizer



You don't want to screw around with your sleep. One survey showed that almost fifty percent of Americans rarely or never have a good night of sleep. Coffee abuse may have something to do with it.



Genetics may play a role regarding the amount of coffee you can have. In particular, the CYP1A2 enzyme is the main enzyme responsible for the metabolism of caffeine. Those with a highly active CYP1A2 enzyme are fast metabolizers of caffeine. Fast metabolizers drink a grande at nine o'clock after dinner and fall asleep at 9:30. Slow metabolizers drink a half cup of coffee in the morning and become anxious all day and have difficulty falling asleep at night.



If you're a slow metabolizer and sensitive to caffeine, stop drinking coffee by noon. Even If you're a fast metabolizer, avoid coffee after 3 PM. Drinking coffee too late in the day can drive up cortisol levels. Remember, as the sun goes down so does your cortisol levels. Sunset is the signal for your body to start reducing the production of cortisol which allows for the production of melatonin, critical for sleep and recovery.




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