Stress, Hashish, and Reminiscence Loss


What Impact Does Stress Have on Hashish-Induced Potential Reminiscence Loss?

A not too long ago revealed examine sought to look at the confounding impact that stress might need on potential reminiscence loss seen in cannabis medical trials. [1]

Picture Credit score: XKCD

The science of statistics just isn’t simple to grasp, and I make no declare to be a statistician. However a cornerstone thought of statistical evaluation is the differentiation between correlation and causation, and the connection between them might be summed up as:

“Correlation doesn’t suggest causation.”

Think about there are two variables, X and Y. Correlation happens when modifications in variable X align considerably with modifications in variable Y, however the relationship between them just isn’t instantly linked. In different phrases, we are able to’t say for positive that modifications in X will result in modifications in Y. Causation, alternatively, happens when modifications in X are instantly chargeable for modifications in Y. Causation produces the connection between impartial and dependent variables.

Scientific analysis seems to be for correlations and causations, as a result of two impartial variables which might be correlated can sometimes even be causal. Most occasions, nevertheless, their correlation is unrelated, and attributable to an unknown confounding (z) issue. [2] Take into account the basic instance “When Ice Cream Gross sales Rise, So Do Homicides,” or the information taken from U.S. authorities businesses proven on the graph under: [3]

Picture Credit score: ACS Publications

“Potential reminiscence” is a time period used to embody the capability of an clever community (corresponding to an organism’s mind) for “forming a illustration of a future motion, quickly storing that illustration in reminiscence, and retrieving it at a future time level.” [4] One of the crucial widespread major adversarial results of cannabis or cannabinoid consumption in each medical trials or leisure use is reminiscence loss. [5-6]

Researchers at Washington State College examined the affiliation between stress and potential reminiscence in cannabis customers vs. non-cannabis customers. [1] The examine established that acute stress, extra so than cannabis use particularly, negatively impacts reminiscence consolidation. Nevertheless, this stress-induced detrimental affect might be exacerbated by cannabis use. Stress, due to this fact, could characterize a hitherto unappreciated confounding consider cannabis medical trials.

Probing this interplay additional is of specific significance to the medical discipline, as a result of circumstances that qualify sufferers for medicinal cannabis use can induce an amazing quantity of stress, and since potential reminiscence loss represents an necessary issue that sufferers contemplate when deciding whether or not or to not incorporate medical cannabis into their treatment routine. [6]


  1. Cuttler, C. et al. “Joint Results of Stress and Continual Hashish Use on Potential Reminiscence.” Psychopharmacology, vol. 236, no. 6, 2019, pp. 1973-1983 [Times cited = 1, Journal impact factor = 3.875].
  2. Skelly, A.C. et al. “Assessing Bias: The Significance of Contemplating Confounding.” Evid Based mostly Backbone Care J, vol. 3, no. 1, . 2012, pp. 9–12 [Instances cited = 100, Journal affect issue = N/A].
  3. Stephen, S.R. “The Hassle with QSAR (or How I Realized to Cease Worrying and Embrace Fallacy)”. J Chem Inf Mannequin, vol. 48, no. 1, 2008, pp. 25-26 [Times cited = 177, Journal impact factor = 3.760].
  4. Crystal, J.D. and Wilson, A.G. “Potential Reminiscence: A Comparative Perspective.” Behav Processes, vol. 112, 2015, pp. 88-99 [Times cited = 13, Journal impact factor = 1.555].
  5. Volkow, N.D. et al. “Antagonistic Well being Results of Marijuana Use”. N Engl J Med, vol. 370, no. 23, 2014, pp. 2219–2227 [Times cited = 1367, Journal impact factor = 70.670].
  6. Fallon, M.T. et al. “Sativex Oromucosal Spray as Adjunctive Remedy in Superior Most cancers Sufferers with Continual Ache Unalleviated by Optimized Opioid Remedy: Two Double-blind, Randomized, Placebo-controlled Section Three Research.” British Journal of Ache, vol. 11, no.3, 2017, pp. 119–133 [Instances cited = 35, Journal affect issue = 753].

Picture Credit score: Pixabay

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