Emotions and chemistry play a big role in a good sex life. But, let's face it, sex is a physical act involving your body and its assorted parts. And if your body isn't feeling 100 percent, your sex life will probably suffer. Even if the desire is there, your health and medical issues can make it difficult for you to enjoy sex to the fullest. Of course, some health issues may be out of your control. But by taking good care of yourself, practicing healthy habits, and taking all possible steps to minimize any health problems you already have, you have the best chance of enjoying a satisfying sex life.