Weed, also known as marijuana or cannabis, is usually detectable in bodily fluids for 1 to 30 daysTrusted Source after last use. As with other drugs, it may be detectable in hair for several months.
Weed detection windows depend on how much you smoke or ingest, as well as how often. In general, higher doses and more frequent use are associated with longer detection times.
For daily users, cannabis may be detectable for several months after last use. The longest-reported detection times are more than 90 days.
hope it helps...!!!
Plain and simple... exercise!
Well if you're given options then I can only answer this question to the best of my knowledge.
So here goes nothing;
If boys are hitting puberty at a younger age and you suspect that its their environment that's causing the issue. First step is to test the environment in which the boys are growing up in to see whats effecting their hormonal imbalances. This can be in the water, air, soil, the house and many other outside influences can cause an early onset for puberty in young boys.