My husband has lost 90% of his sex drive, we merely do sex, we are same age 33, and it's 7 years of our marriage and we don't have baby. He himself understands his problem, he loves me, cares ll me a lot and there is no other woman in his life. He feels tired and stressed out all the time, smokes a lot, food habits and lifestyle is not appropriate, nd also has some health issues, and he is underweight. We are very much worried, it's difficult to live with lots of sexual desire for me as well as. Is there any treatment or medicine so that his sexual desire or drive can normalized?