To better understand how cannabis affects memory, it’s important to first recognize that memory is not a construct that can be easily measured. Why? There are many different types of memory, each of which we test in different ways. Secondly, there are acute, or short-term, effects on memory (e.g., while under the influence), and possible long-term effects. And, finally, dosing, frequency, and strains play a big role in how cannabis affects memory. Read more here.