Adults:
Body Mass Index (BMI) is the quotient between weight and height squared (kg/m2). An individual with a BMI < 18.5 is regarded as a case of wasting. Percent of body weight lost (At Tufts, an unintentional loss of 6% or more in 6 months is regarded as wasting)

Treatment and prevention
Antiretrovirals and anabolic steroids have been used to treat HIV wasting syndrome. Additionally, an increase in protein-rich foods such as peanut butter and legumes (dried beans and peas) can assist in controlling the loss of muscle mass. See also
Anorexia
Atrophy
Cachexia
Superior mesenteric artery syndrome
Weight loss

References
External links

Chronic Wasting Disease and Potential Transmission to Humans, Center for Disease Control and Prevention
Unintentional Weight Loss/Wasting, Tufts University Nutrition/Infection Unit
Children are also said to be marked by some sudden fright or unpleasant experience of the mother, and I have myself seen a pop-eyed, big-mouthed idiot whose condition is ascribed to the fact that his mother stepped on a toad several months before his birth. In another case, a large red mark on a baby’s cheek was caused by the mother seeing a man shot down at her side, when the discharge of the gun threw some of the blood and brains into her face.Other explanations claimed that birthmarks shaped like food were the direct result of the mothers pregnancy cravings, or the mother touching a certain part of her body during a solar eclipse - her childs birthmark will be in the same location. References
External links

Birthmarks via the Cleveland Clinic
Vascular Birthmarks Foundation
Birthmarks via MedlinePlus