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.
Ways Pot Can Kill You, Or Not. Smoking weed can raise your blood pressure and double your heart rate â cardiovascular effects that test the old ticker. Some studies suggest marijuana use can increase your risk of a heart attack, particularly in the first hour after use. But one 15-year study found no such effect.