I did a research on 500 couples of age group 30 to 50 last year and to my surprise the issues were actually very trivial and related to mindless attitude. The habits of working mechanically (mindlessly) become so deep rooted that people don't enjoy the journey of romance, foreplay, afterplay, casual caressing or stroking, patting, bedroom jokes, bedroom language, bedroom scents, just togetherness, toys, books, videos, naughty games, magazines, dildos. So come out of formalities and enjoy as if you are children or friends. Lovemaking is an art, mindfully enjoying it - A to Z with renewed interest every time.