THC is a general term that encompasses all forms of the cannabinoid tetrahydrocannabinol, including delta-9-THC. When people refer to THC, they’re usually referring to delta-9-THC, as it’s the most well-known and studied form.
THC is the primary psychoactive compound found in cannabis. When ingested, the liver converts it to 11-hydroxy-THC, which crosses the blood-brain barrier more easily, leading to stronger, longer-lasting psychoactive effects and therapeutic benefits than other delivery methods like smoking.
Outside of psychoactivity, THC has demonstrated the following health benefits:
Pain Relief - THC activates pathways in the central nervous system that significantly reduce pain, especially neuropathic pain. It also offers powerful analgesic and anti-inflammatory properties.1
Muscle Relaxation - THC can relax muscles, lessen muscle stiffness, and reduce spasms. As an effective muscle relaxant and antispasmodic, it has become a popular treatment for everything from sports recovery to more serious medical conditions like MS, fibromyalgia, and PD.2
Antioxidant & Neuroprotective Effects - As a potent antioxidant, THC provides neuroprotection by reducing oxidative stress and inflammation in the brain. It also interacts with the endocannabinoid system, activating CB1 receptors to fine-tune neurotransmitter release, promote neurogenesis, and protect mitochondrial function.3
Improved Sleep - Improved sleep quality supports better overall health, cognitive function, and mood. THC has been shown to reduce stress, promote relaxation, and decrease the time it takes to fall asleep, especially at the low dose and microdose level. Currently, THC is used as an effective treatment for insomnia and to help re-establish healthy sleep patterns, particularly in individuals with PTSD, restless leg syndrome, sleep apnea, and chronic pain.4
Stimulates Appetite - THC triggers release of the ghrelin hormone, which stimulates hunger. THC not only arouses hunger, it makes eating food more pleasurable as well. As an appetite stimulant, it has proved indispensable for patients dealing with loss of appetite.5
Anti-Cancer Potential - Early lab and animal research indicates THC may have anti-tumor effects, triggering cancer cell death while not harming healthy cells.6
Pain Relief
1) Ware MA, Wang T, Shapiro S, Collet JP; COMPASS study team. Cannabis for the Management of Pain: Assessment of Safety Study (COMPASS). J Pain. 2015 Dec;16(12):1233-1242. doi: 10.1016/j.jpain.2015.07.014. Epub 2015 Sep 16. PMID: 26385201.
Muscle Relaxation
2) Grotenhermen F, Müller-Vahl K. The therapeutic potential of cannabis and cannabinoids. Dtsch Arztebl Int. 2012 Jul;109(29-30):495-501. doi: 10.3238/arztebl.2012.0495. Epub 2012 Jul 23. PMID: 23008748; PMCID: PMC3442177.
Antioxidant & Neuroprotective Effects
3) Hampson AJ, Grimaldi M, Axelrod J, Wink D. Cannabidiol and (-)Delta9-tetrahydrocannabinol are neuroprotective antioxidants. Proc Natl Acad Sci U S A. 1998 Jul 7;95(14):8268-73. doi: 10.1073/pnas.95.14.8268. PMID: 9653176; PMCID: PMC20965.
Improved Sleep
4) Ried K, Tamanna T, Matthews S, Sali A. Medicinal cannabis improves sleep in adults with insomnia: a randomised double-blind placebo-controlled crossover study. J Sleep Res. 2023 Jun;32(3):e13793. doi: 10.1111/jsr.13793. Epub 2022 Dec 20. PMID: 36539991.
Maddison KJ, Kosky C, Walsh JH. Is There a Place for Medicinal Cannabis in Treating Patients with Sleep Disorders? What We Know so Far. Nat Sci Sleep. 2022 May 18;14:957-968. doi: 10.2147/NSS.S340949. PMID: 35611178; PMCID: PMC9124464.
Russo EB, Guy GW, Robson PJ. Cannabis, pain, and sleep: lessons from therapeutic clinical trials of Sativex, a cannabis-based medicine. Chem Biodivers. 2007 Aug;4(8):1729-43. doi: 10.1002/cbdv.200790150. PMID: 17712817.
Stimulates Appetite
5) Haney M, Gunderson EW, Rabkin J, Hart CL, Vosburg SK, Comer SD, Foltin RW. Dronabinol and marijuana in HIV-positive marijuana smokers. Caloric intake, mood, and sleep. J Acquir Immune Defic Syndr. 2007 Aug 15;45(5):545-54. doi: 10.1097/QAI.0b013e31811ed205. PMID: 17589370.
Anti-Cancer Potential
6) Sarfaraz S, Adhami VM, Syed DN, Afaq F, Mukhtar H. Cannabinoids for cancer treatment: progress and promise. Cancer Res. 2008 Jan 15;68(2):339-42. doi: 10.1158/0008-5472.CAN-07-2785. PMID: 18199524.