How food and drink affect your sleep. What you eat and drink before bed can affect your sleep. For example, foods containing the amino acid tryptophanâa building block of the sleep-related chemical serotoninâcould potentially make you drowsy, although evidence is mixed as to whether the amount in food is enough to change your sleep.
The study estimates lifetime societal savings (net present value) of about $12 billion from the more than 600,000 total knee replacement surgeries performed each year in the U.S. These societal savings primarily accrue to patients and employers.
A. Total knee replacement surgery is considered for patients whose knee joints have been damaged by progressive arthritis, trauma, or other rare destructive diseases of the joint.The most common reason for knee replacement in the United States is severe osteoarthritis of the knees.egardless of the cause of the damage to the joint, the resulting progressively increasing pain and stiffness and decreasing daily function lead the patient to consider total knee replacement. Decisions regarding whether or when to undergo knee replacement surgery are not easy.