When I was an undergrad I found that I would get extremely sleepy about an hour after eating . According to Hal Huggins ,this is becuuse mercury displaces oxygen on RBCs so one does'nt get enough oxygen to the brain.Since I did'nt want to fall asleep in class or wherever ,I started skipping lunch and having a big meal at dinner. I now know that consuming a lot calories in one meal is the worst thing you can do to your adrenal glands.I eventually developed symtoms of adrenal exaustion -very low blood pressuse,dizziness upon standing , dark circles under my eyes, bad acne etc. While I still have various other symtoms , when I started eating three meals ,none of which have excessive calories, my low blood pressure and certain other symtoms went away.
Another way to test for adrenal exaustion is to go on a water fast for two days. If your adrenals are malfunctioning ,you wil lprobably be unable to swallow water after two days.