Obesity can lead to erectile dysfunction in men, and now studies also show that obese women suffer from lower sexual satisfaction leading to an overall lower sexual quality of life. Being obese not only has adverse effect on the general quality of life (can lead to heart problems, diabetes etc.) but can also create intimacy issues.
The reasons for lower quality of sex life for obese people are both physical and psychological. Being overweight means that there is restricted physical movement due to excessive fat and the lack of exercise means that there is not much stamina which is needed to enjoy sex.
A lot of obese people, especially women are very conscious of their physical appearance, generally leading to lower self esteem, which makes sexual intimacy that much more uncomfortable for them.
If one is obese it is obvious that making changes like monitoring their diet, incorporating exercises in their daily routine etc are important to improve their overall and sexual health, but it is also as important to feel good about themselves, to be able to accept their own physicality and realize that they can still enjoy their sex life in-spite of being overweight.
Discussing issues about their sex life is uncomfortable for most people and obese folks are no different. But there are qualified sexologists and sex therapists who can help them in understanding and resolving their sexual health related concerns. It is important to reach out for help and not suffer unnecessarily.