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.
Apart from affecting cognitive thinking and causing other psychological problems, marijuana use has also been linked to various physical and medical problems. According to the National Institute on Drug Abuse (1998), marijuana use causes harmful effects on the brain, lungs, and reproductive system. For example, prolonged use of marijuana has been found to cause a decrease in male hormone testosterone as well as a reduction in female estrogen levels.