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.
When people smoke marijuana for years they can suffer negative consequences. For example, because marijuana affects brain function, the ability to do complex tasks could be compromised, as well as the pursuit of academic, athletic, or other life goals that require you to be 100 percent focused and alert.