The impact in the first few days may be steady as the body gets used to the effects of CBD. It may provide a sense of calm to the mind and could help reduce the heart rate and blood pressure, too.
The difference has to do with how the two cannabinoids interact with the endocannabinoid system. This is thought to be why THC has psychoactive properties, while CBD does not. CBD interacts indirectly with the cannabinoid receptors and THC binds to them. Some CBD products contain trace amounts of THC, less than 0.3%. This is because the full range of cannabinoids, including minute amounts of THC, are able to work together to provide the “entourage effect”. This is what is known to synergistically provide the potential effects of hemp-derived products.
Let’s assume a person is regularly taking a dose of CBD and wants to see how it impacts the heart rate. It’s one thing to start making changes to your regimen and another to recognize what it is going to do the heart and the body as a whole.
Impact on the Heart Rate
Similar to the resting heart rate, if you experience a reduction in heart rate, it may be minimal. However, it may take time for the body to get used to CBD and its effects. So you may want to check back with your heart rate over time.
Often times, a person will be prescribed with medications to help manage the symptoms of heart disease. However, certain medications can come with side effects. CBD has the potential to help target symptoms. However, CBD is not a replacement for medication. You should always talk with your doctor before introducing new supplements to your routine. It’s important to note that further research is needed to understand the full impact of CBD on the cardiovascular system.
A healthier person may notice an improvement in their resting heart rate more so than someone who is already suffering from symptoms of heart disease.
In general, CBD is known for its potential to calm the heart and reduce a person’s heart rate, especially if they are under duress. In some cases, it might also help stabilize the heart rate regardless of whether or not a person is dealing with stress.
So, the two studies which applied CBD in stressful conditions (one in rats and one in humans) both found reduced blood pressure and heart rate, but the study which applied CBD in non-stressful situations found only a reduction in blood pressure and an increase in heart rate.
This is the simplest test we conducted: each day over a period of three days, at the same time (2:00 PM) each day, we measured my heart rate without CBD, and then I took a 40mg dose of NuLeaf Naturals organic full-spectrum CBD oil, we waited 30 minutes, and we measured my heart rate again. We then took the average of all three measurements. Here are the results:
CBD and THC: two very different cannabinoids
The difference also provides further reason to believe that CBD and THC may function best in combination, especially given the substantial evidence indicating that CBD may reduce negative side-effects of THC (including on brain function). For instance, in this September 2019 study just conducted by the University of Western Ontario , they found that CBD blocked the psychiatric side-effects of THC. PhD candidate and head researcher Roger Hudson explained that “ CBD was also able to reverse the anxiety-like behaviour and addictive-like behaviour caused by the THC.”
It’s important to note that, while CBD and THC are both derivatives of cannabis, when it comes to acute cardiovascular function they appear to have opposite effects: THC increases autonomic arousal, whereas CBD reduces it; CBD may reduce heart rate, but THC is known to increase heart rate.
This key difference in the two cannabinoids — in how they affect the nervous system — explains why one, THC, is associated with increased anxiety and psychosis, while the other, CBD, is associated with the opposite.