Do you have a Carbon Monoxide tester? If you have low/mid levels of CM it will make you extremely tired and week. I dont think I need to tell you what happens with high levels..... :(
So my buddy let a guy at his gym talk him into Test 500. I just found out 3 weeks into his run and was asking him some questions. I figured out pretty quick my buddy has done zero research on this and didn't know what a pct was..... After I ripped his ash I figure we better find out what to use...
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