Addiction is a chronic brain disease that induces compulsive activity, despite health, social and legal consequences. A person may seem to make a voluntary choice to try a drug or begin a type of behavior, but a variety of genetic and environmental factors influence those decisions.
Expert: Theresa replied 8 years ago. Symptoms of a dying dog include, lack of appetite, pale, blue, or gray gums, dry gums, inability to stand, dilated pupils, difficulty breathing, unresponsiveness, and neurologic symptoms. A dog can live for a couple weeks without enough food and water.
A sudden increase of appetite in a dog can be a symptom of a number of conditions: 1  Aging. 2  Bacterial overgrowth in the intestines. 3  Cushingâs disease. 4  Diabetes. 5  Exocrine pancreatic insufficiency. 6  Hyperthyroidism. 7  Reaction to medication.