High-quality palliative care also requires special expertise in honest, compassionate communication. In addition to enhancing the patient's and family's experience, these skills help to establish trust and overcome barriers to adequate care and relief of symptoms. Several communication tasks are especially important: conveying accurate prognostic information while maintaining hope, eliciting information about symptoms, decision making about curative and palliative treatments, handling emotions, and dealing with requests from patients and families who have unrealistic goals [34, 35, 36] . The challenges of communicating effectively are discussed later in this course.
Fat gain may also be linked to insulin resistance. Insulin resistance can cause glucose intolerance, which has been associated with fat gain, increased triglycerides, and the development of diabetes. Insulin is a hormone produced by the pancreas to control blood sugar-glucose. HIV medications may block or slow down the process by which insulin converts glucose to energy. In laboratory studies, Crixivan and higher doses of Norvir and Zerit have been shown to impair the action of insulin in fat and muscle cells. In this scenario the pancreas will tend to produce more and more insulin to compensate for the decrease in function. High insulin levels may be present for years before type 2 diabetes develops. A glucose tolerance test (GTT) may reveal that problem easily but it is hardly used in clinical practices. Additionally, some people may have a genetic predisposition to insulin resistance. A sedentary lifestyle and a diet rich in sugars and animal fats may also compound this problem. In any case, insulin resistance may just be a part of the mystery of lipohypertrophy. There is no agreement among researchers whether or not monitoring insulin levels in HIV-positive people is justifiable or dependable as a tool to assess insulin resistance and fat gain.