How long will marijuana stay in your system if you smoke it once a week?

Answer:
I've done some research and it is said that marijuana has a half-life of anywhere from 1-10 days. there is no way to know beforehand but it has something to do with potency. to play it safe, stop for 10 days. it shouldn't be that hard if you only smoke once a week to skip a week
First answer by Thestarq. Last edit by Thestarq. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 9 [recommend question].