This some of what she's saying on the shows. In a culture in which television, magazines, movies and other media portray individuals having lots of sex and always perfect, it's validating to know that isn't the case for more than an isolated few.
Many sexual difficulties are lifestyle related.
Medications are famous for lowering libido. There are millions of low-T men and women. For this group it is normal to have little physical drive. Basically all you need is the desire to desire to be a great sex partner. I don't mean to oversimplify but this study brings out the fact that many of us have to be proactive to create the sex life we long for.