As animals age there is the potential for development of conditions that can make routinely used anesthesia drugs difficult for their system to handle. (petallianceorlando.org)
We stopped updating diet at the beginning of the time interval during which individuals developed cancer (except nonmelanoma skin cancer), cardiovascular diseases, or gestational diabetes because changes in diet after development of these conditions may confound the relationship between diet and diabetes (21). (care.diabetesjournals.org)
Certain infections and malignancies in mammals cause the development of a condition known as cachexia in which the animal continues to lose weight, often while consuming an adequate diet. (science.sciencemag.org)