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.
Further study is needed to answer this question, but possible short- and long-term risks of using marijuana to treat medical conditions include: Addiction, which occurs in about 10 percent of users who start smoking marijuana before age 25. Breathing problems, for people who smoke marijuana.