A home health nurse is compiling a patient profile on a 23-year-old obese woman who smokes one-half pack of cigarettes a day and drinks 1 beer a week. She works as a cook in a long-term care facility. She has two children and eats a diet high in fats. She exercises 30 minutes a day. Both parents are dead of heart disease. How many risk factors for cancer in this profile should the nurse identify?