I watched the video and saw nothing to support any reason for you to "question the reasoning behind the commonly held notion that Sativas are always energetic and Indicas are sleepers."
It has long been known that cannabinoids work in conjunction with each other, as do some terpinoids. Some work to enhance the effects of THC and others work against the effects of THC. None on their own will produce a good high.
Cannabidiol is nonpsychoactive and was initially thought to have no effect on the psycho activity of THC. More recent evidence however shows that smokers of cannabis are less likely to experience schizophrenia-like symptoms if there is a higher CBD to THC ratio. Experiments show that participants experienced less intense psychotic effects when intravenous THC was co-administered with CBD. It has been hypothesized that CBD acts as an allosteric antagonist at the CB1 receptor and thus alters the psychoactive effects of THC, resulting in a more easily manageable high.
That is what was seen in the video, what the researcher was testing for.
CBD has a greater affinity for the CB2 receptor than for the CB1 receptor, meaning that its effect is mostly in the body and not so much in the head. CBD shares a precursor with THC and is the main cannabinoid in low-THC cannabis strains like hemp.
Landrace strains, usually of indica heritage, contain higher concentrations of CBD than recreational drug strains, which are usually bred towards a higher concentration of THC. This is the reason why strains containing high ratios of CBD can be difficult to find.
Tetrahydrocannabinol, also known as delta-9-tetrahydrocannabinol (Δ9-THC), is the primary psychoactive component found in the cannabis plant. It was first isolated by Raphael Mechoulam, Yechiel Gaoni, and Habib Edery from the Weizmann Institute of Science in Rehovot, Israel, in 1964.
This is the main compound that gives rise to the high that is tightly linked with the cannabis plant. It affects several areas of the brain simultaneously and can therefore give rise to an assortment of experiences, ranging from altered perception of time and the self, to feelings of euphoria and relaxation all through the body.
Medically, it appears to be analgetic, meaning that it is capable of alleviating even severe pain. It is also known to be neuroprotective, which rules out the possibility of brain damage, which was initially proposed to follow from heavy use of the plant. It has approximately equal affinity for the CB1 and CB2 receptors. By binding to CB1 receptors (the ones in brain) it produces the high that we are so familiar with. That is why the effects of THC is more cerebral, than the effect of CBD, which seems to have a greater affinity for the CB2 receptor.
THCV is the propyl homologue of THC and is similar in structure. The propyl cannabinoids have so far been found in some varieties originating from Southeast and Central parts of Asia as well as Africa, Afghanistan, Pakistan, India and Nepal. What are considered some of the most potent marijuana varieties also contain propyl cannabinoids. Some examples include traditional African landrace sativas as well as pure Thai varieties and various hybrids known as Haze.
Cannabinol is the primary degradation product of THC and increases in concentration with plant age. The concentration of this product in the bud is heavily dependent on the time of harvest. Harvesting the bud at a late stage also means that the concentration of CBN in relation to THC will be higher when compared to the peak of THC production.
Also, the woman in the video kept referring to "skunk." She said "new strains of skunk." As I understand things, in Great Britain is a blanket term for any high potency pot and not actually a skunk strain. No particular strain type was referred to. Nothing that was said would be reason to question if sativas do in fact cause a more uplifting energetic head high or not or if indicas do in fact cause a more heavy narcotic body stone or not.
And when you said "sativas" I had to wonder if you meant 100% pure land-race sativas or 100% sativa crosses or like most people mean when they say sativas, a sativa/indica hybrid that is predominantly sativa but does have some indica in it so along with a head high there would be some degree of a body stone. There can be a fairly big difference between a real true land-race sativa and a sativa dominant hybrid cross, so if you did not mean a true sativa you should state that you are talking about a sativa dominant hybrid cross. The same goes for when you say indica. For anyone to formulate a valid response they would really need to know for sure just what you are talking about.
Since 1968 I have smoked mainly real sativas, and before about 1980 that was all I smoked, and I have never run across one that was indica-like, that had a heavy narcotic couchlock body stone sort of buzz to it. Not one. Not all were the same in every way, but all were energetic and uplifting and thought provoking to some degree or another.
I really cannot see where you are on to anything.
