Quote Originally Posted by livinlegend215
I also heard that you shouldn't exercise a few days before your test. Is that true? If so, why is that?
That is true.

Because THC is stored in your fat cells. They remain there until the fat cells are burned for energy. When fat cells burn, the stored THC metabolites are released back into the bloodstream. From there, the THC metabolites are filtered by the kidneys and deposited in the bladder for the eventual exit. This is the main reason why THC carries a longer detection period than other types of drugs.

So if your home tests are positive, and your scheduled U/A is 3 days away, then all exercise should be curtailed until after the U/A. You want your body to revert to "storage mode" - be as dormant as possible to prevent a bunch of THC metabolites from being released into the bloodstream, which will end up in the urine to be detected.