Dr. Matthew Hill: How Cannabis Impacts Health & the Potential Risks

12210.075 - 12233.693 Dr. Matthew Hill

But THC itself has a very complex effect on cardiovascular function because it tends to cause – typically vasodilation. So you get widening of the blood vessels, which is why it relates to a lot of people will experience postural hypotension. So sometimes when, what that is is if you stand up and your blood pressure doesn't catch up with you, so you get really lightheaded and people will collapse.