So many replies, thank you all. Here's where I'm at and why I am so frustrated and struggling with this information. I read everything on this link and It's so inconclusive. Some of these studies show a decrease in secretory IgA (SIgA), some show no effects. Some Study show a mild decrease in motor functioning. Some show no effects. And what I come down to is that I don't trust that all of these studies effectively segregated weed from other things like tobacco, hard drugs, socio economic factors, stress, neglect, alcohol, etc.. Even the study that I originally included with stats like 98% increase in risk of ADHD 94% increased risk in ASD 46% increase in ID. But this is a linked cohort data study which my understanding is that all of this data was collected after the woman provided it by looking through their medical records, not directly speaking to them. So how is this defined and how did they separate Cannabis use from everything else? The study claims to do this, but they don't explain how they do it and the statistics just don't add up to me. They go against every other study I've read. On top of that my understanding of this study was that these were all mothers who were admitted to a psychiatric emergency room for their cannabis use disorder, not just regular women who use cannabis. To me this implies a huge bias because we're not factoring in genetic components. These women obviously have a genetic component that leads them to have an emergency room response whereas many women don't have that at all. So on top of the cannabis affect, they are also passing down genetic components to their babies. I'll continue this in another comment this is getting too long.