1 Hoarseness is an abnormal change in the voice. 2  The most common cause of hoarseness is acute laryngitis.  The underlying cause of hoarseness can usually be diagnosed by a health care professional based on the patient's history and physical exam.
The effects usually stop after 3 or 4 hours. Smoking pot can increase your heart rate by as much as two times for up to 3 hours. Thatâs why some people have a heart attack right after they use marijuana. It can increase bleeding, lower blood pressure, and affect your blood sugar, too.
Effects Of Smoking Marijuana On The Human Brain: Drug Reduces Blood Flow To Hippocampus, Increasing Alzheimer's Disease Risk. Numerous studies tout marijuana for its brain protective benefits, from helping brain cells grow to shielding the brain from chronic stress.