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.
Marijuana smoke also causes temporary irritation, but it has no lasting effects. Marijuana does not increase your risk for cancer or COPD, let alone cause them unlike tobacco smoking and there are studies that conclusively prove this and disprove the myth and lie alleged by the negative propaganda.