Diabetes Type 1 Support Group

Diabetes can affect the sex drive and performance of both men and women. Impotence, or erectile dysfunction (ED), may occur as a result of nerve or vascular damage associated with diabetes. The anxiety, stress, and depression that often accompany diabetes can also have an impact on libido and performance. Over half of all men with diabetes over age 50 report problems with impotence, and men with diabetes develop impotence 10 to 15 years earlier than men without it. A variety of treatment options, including medication, medical devices, surgical implants, and therapy, are available and effective.

Infection or chronic vaginitis leads to sexual dysfunction in part due to discomfort or even embarrassment, and even though 43% of women report problems with sexual dysfunction, the problem is low profile and infrequently discussed. Women are often reluctant to bring up the topic with their healthcare provider, therefore sexual dysfunction may remain untreated for months or even years. It’s important for women to realize there are steps they can take to improve their love life and their sexual health.

Sexual dysfunction is a life-altering problem that many people are embarrassed or ashamed to discuss with their doctor, but it’s also highly treatable, so talk to your diabetes healthcare team about the problem—they are there to help. If it is a physical problem caused by your diabetes, it needs to be addressed. Your physician may refer you to a gynecologist or urologist for further evaluation.

hope the above helps

i don't know how long you consider too long, but in general, i think that most men consider the OPPOSITE to be more of an issue.

check out "mantak chia." Its actually not healthy for men to ejaculate on a regular basis, and to learn to cycle that energy without ejaculating is a much more powerful experience for both partners, and makes sex a rejuvenating experience for both man and woman. Fabulous. My husband is a different man now.
(i am assuming by your screen name that you are a man)
A lot of men ejaculate once and are pretty much done, although there are men who have multiples, its less common after the mid-20's.