If severe stiffness is persistent, gentle manipulation of the shoulder under an anesthetic may help recovery. Very rarely, arthroscopic surgery may be recommended. Other treatments include steroid injections and physical therapy soon after the problem is diagnosed. But so far the research hasn't proven any links between drinking coffee in moderation and serious health problems. Coffee compounds that have been linked to increased cholesterol levels aren't found in filtered or instant coffee, which most Americans drink.
Caffeine can intensify certain heart rhythm problems, and cause a temporary rise in blood pressure.
Caffeine increases the amount of calcium excreted in urine, but only with a large intake of caffeine does risk of osteoporosis increase.