CBD can raise a person's heart rate. For instance, a 2017 study reports that a single dose of cannabidiol reduced blood pressure but increased heart rate in the study participants. However, this was a small study with just nine healthy male volunteers.
Other ingredients in CBD products, such as caffeine, may raise a person's heart rate. Buyers should carefully read ingredient labels when buying CBD products.
Additionally, those with a heart condition should speak with a doctor before trying CBD. People should stop using CBD if they experience side effects, including a fast or irregular heartbeat.