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.
Symptom 3: Lack of Appetite. 1  Less Serious Causes: A dog may eat less because of stress, recent vaccinations, pickiness, or because they are getting older. 2  More Serious Causes: A decreased appetite can also be a sign of illness, especially if your dog is exhibiting other symptoms as well. More serious causes of appetite loss include but are not limited to: liver problems, kidney failure, cancer, infection, dental disease, and pain.