Women who regularly have orgasms are more energetic and suffer fewer illnesses than females who are left wanting more after sex sessions, says a new research.

According to a team from the Women''s Health programme in Australia, females who rate their sex lives highly have more vitality and a better psychological outlook than those who have sex less than twice a month.

Researchers analysed sex lives of almost 300 females aged from 20 to 65 to reach the conclusion.

Lead researcher Dr Sonia Davison, of the Women''s Health Program at Monash University, Australia, said: "We found that women who were sexually dissatisfied had lower well-being and vitality.

"This finding highlights the importance of addressing these areas as an essential part of healthcare, because women may be uncomfortable discussing these issues with their doctor."

As over 90 percent of women in the study reported their sexual activity involved a partner, and was initiated by the partner at least 50 percent of the time, the sexual activity of the women may have been affected by partner presence (or absence), partner health, and sexual function, which were not addressed in the study.

"The fact that women who self-identified as being dissatisfied maintained the level of sexual activity reported most likely represents established behaviour and partner expectation," said Professor Susan Davis, senior author of this study, also based at the Women''s Health Program at Monash University, Australia.

"It also reinforces the fact that frequency of sexual activity in women cannot be employed as a reliable indicator of sexual well-being," the expert added.

Sexual medicine expert Dr Irwin Goldstein said: "This emphasises the role and importance of sexual health in women''s overall health and well-being."

The study has been published in The Journal of Sexual Medicine.