My father has not been well for few years. All his tests are mostly normal and doctors advice him to quit smoking (he was a cronic smoker). Now he smokes once a day and we dont stop him cuz he feels uneasy without it. He weighs less than 40kgs and very weak at this time. We have changed doctors, medicines of all sorts but he doesnt seem to recover. There is no such serious illness as per doctors. We think it was his unhealthy lifestyle ( smoking and improper eating habits). He was in a marketing job and due to travelling everyday there was no such eating routine. He never cared about his body and now it seems to have had very bad effect on him. He has not been well for a long time ( cough, lose motion, fever and weakness) and now he seems hopeless. He doesnt have hunger at all and sometimes he behaves like a 90 year old, hopeless with his health. Please somebody suggest what should we do. He is getting weaker and weaker now. Though he has tried ayusvedic anf homeopathic meds as well still if someone has a good experience, plz suggest.