In the prefrontal cortex, the area of the brain used for planning and decision-making, CBD caused a significant increase in blood flow in the orbitofrontal cortex. Numerous studies have found that CBD can help improve blood flow through the arteries and lower blood pressure. It can also help prevent damage caused by circulatory diseases and improve the functioning of the circulatory system. In addition, its beneficial effects are evidenced by studies that suggest that it may reduce the risk of stroke and heart attack.
CBD significantly increased blood flow in the hippocampus, however, CBD did not cause significant differences in blood flow in other regions of the medial temporal lobe (MTL), of which the hippocampus is an important component. Taken together, these studies show that CBD influences both white blood cell survival and death, white blood cell migration and platelet aggregation, which could underpin CBD's ability to delay or prevent the development of cardiovascular disorders. This study used a single dose of CBD in healthy volunteers, which might not translate into the effects of repeated administration of CBD. Although acute or chronic CBD treatment appears to have little effect on hemodynamics, CBD reduces the cardiovascular response to stress models, applied systemically or intracranially, inhibited by a 5HT1A receptor antagonist.
In addition to the effects of CBD on the heart and vasculature, there is evidence that CBD also influences blood cell function. You can do an internet search or ask a friend who uses CBD products who knows the most well-known CBD brands on the market.