Nerves and Heart Health
Medical marijuana is frequently prescribed to people with intractable pain, including those with terminal cancer. There is some evidence that CBD contributes to this effect.
According to a 2012 study in the Journal of Experimental Medicine, rats injected with inflammatory chemicals in their hindfeet experienced less inflammation and neuropathic pain when treated with an oral dose and spinal injection of CBD.
Scientists believe that CNB reduces nerve pain by binding to glycine receptors in the brain that regulate the speed in which nerve signals pass between nerve cells.
Human studies evaluating the use of CBD in treating chronic pain are lacking. Those that do exist almost invariably include THC, making it difficult to isolate CBD’s distinct effects.
CBD oil may reduce the risk of heart disease by alleviating hypertension (high blood pressure) in certain people, suggests a 2017 study in JCI Insight.
For this study, nine healthy men took either 600 milligrams (mg) of CBD or 600 mg of a placebo. According to the researcher, those treated with CBD had lower blood pressure before and after exposure to stressful stimuli (including exercise or extreme cold).
In addition, the stroke volume (the amount of blood remaining in the heart after a heartbeat) was significantly reduced, meaning that the heart was pumping more efficiently.
The findings suggest that CBD oil may be a suitable complementary therapy for people whose hypertension is complicated by stress and anxiety.
However, there is no evidence that CBD oil can treat hypertension on its own or prevent hypertension in people at risk. While stress is known to complicate high blood pressure, it cannot cause hypertension.