Kyphosis most cases of kyphosis are mild and only require routine monitoring, serious cases can be debilitating. High degrees of kyphosis can cause severe pain and discomfort, breathing and digestion difficulties, cardiovascular irregularities, neurological compromise and, in the more severe cases, significantly shortened life spans. These types of high-end curves typically do not respond well to conservative treatment and almost always warrant spinal fusion surgery, which can restore the body's natural degree of curvature. Prevalence of kyphosis has been linked to nasal obstruction in a study. The risk of serious complications from spinal fusion surgery for kyphosis is estimated to be
Medical cannabis in the United States cultivation of [cannabis] for medicinal purposes" and to "allow a letter from a treating physician to be used as prima facia evidence that marijuana can alleviate the pain and suffering of that patient's medical condition". The resolution allowed the open distribution of cannabis to AIDS patients and others throughout the city, most notably through the San Francisco Cannabis Buyers Club which was operated by medical cannabis activist Dennis Peron (who spearheaded Proposition P and later the statewide Proposition 215). Similar clubs appeared outside San Francisco in the ensuing years as other cities passed legislation to support the medical use of