According to the author of Sex & Love at Midlife: It's Better Than Ever, Bernie Zilbergeld (who also wrote The New Male Sexuality), “...this book is useful for anyone who wants to learn about the actual and potential sexuality of women and men no longer young: adults at midlife or beyond who want to enhance their own lovemaking.” By conducting interviews with 50 couples over the age of 45 and then weaving them together in themes, Zilbergeld has written this excellent resource on sexuality, aging, and health problems.
If you find personal stories helpful, this book will be useful for you. A majority of the text consists of the couples describing their sex lives and relationships as they've grown past middle age, sharing their successes and strategies for dealing with change or illness. The author himself struggled with diabetes since the age of 20, and openly discusses his own experience with sexual health and relationships. You'll find chapter titles like, “Myths and Realities About Sex and Aging” and “Normal Physical Changes in Men and Women at Midlife.”
If you are someone who is struggling with the impact of age-related health problems on sexuality (your own, or someone else's), or you want to learn more about maintaining a great, fulfilling sex life as you mature, Sex & Love at Midlife: It's Better Than Ever is an illuminating and helpful tool.