The 2 most popular components of cannabis (marijuana) remain THC and CBD, and it is known that they sometimes have opposing effects, but that could be to your benefit.
In this study of 134 cannabis smokers, THC levels were equal, but the levels of CBD varied, and the researchers studied the effect on memory impairment.
Those with low CBD levels demonstrated memory impairment, while those who consumed the same levels of THC but maintained higher CBD still got their desired effect but did not suffer memory issues.