You're referring to the blurred classification of indica and sativa. Breeders crossed these strains so often that there is less of a distinction. However, there remain pure sativa and pure indica strains that haven't crossed. Now, industry is using a spectrum to describe where in the sativa-indica spectrum the product experience usually lies. Sativa-leaning product are more psychedelic and introspective.

What makes you say that? Would be curious to read any study about that if you can remember where you heard that.

Ok i will try to seach for it once i get to my home laptop. I thought it was more of a marketing thing than any something backed up scientifically.

Is is scientifically studied?