It is possible. Some forms of myeloma secrete a protein called a light chain that can invade organs like the heard or liver and cause it to function poorly. Most of the problems with the heart arise from many of the early treatments of myeloma which included a drug called adriomycin. Modern chemotherapy can still cause heart problems but not at the same rate.
Myeloma. Myeloma can involve the heart directly or infiltrate it with amyloid like tissue. The chemotherapy for myeloma can damage the heart also.
Yes. Rheumatic fever can affect the heart, most commonly the heart valves. Early cardiac findings of acute rheumatic fever include mitral insufficiency and aortic insufficiency. Long-term consequences of rheumatic heart disease include the development mitral stenosis and/or aortic stenosis. The tricuspid and pulmonary valves can also be affected.
Yes. Smoking is probably the main preventable cause of arteriosclerosis in the western world, and is becoming more significant in the developing world as well, since cigarette companies are targetting developing nations. Elevated cholesterol (esp ldl), diabetes, hypertension and heredity are the other main risk factors.
Anxiety in teens. Should not cause heart disease.
Possible. It is much harder to link a direct effect of the coffee, to the development of heart disease; however, the things associated with coffee drinking, such as increased stress or lack of adequate sleep, can increase your risks. Consider abstinence. Visit PCP regularly.