Washington: A new book says that the hook-up culture has left the new generation unhappy, sexually unfulfilled, and confused about intimacy.

Donna Freitas' new book 'The End of Sex- How Hookup Culture Is Leaving a Generation Unhappy, Sexually Unfulfilled, and Confused about Intimacy,' said that "amid the seemingly endless partying lies a thick layer of melancholy, insecurity and isolation that no one can seem to shake."

The book further added that college students have perfected an air of bravado about hook-up culture though a great deal of them wish for a world of romance and dating, a website reported.

Freitas found that 41 per cent of pupils from American college campuses expressed sadness or even despair about hooking up. These students suspected that hook ups robbed them of healthy, fulfilling sex lives, positive dating experiences and loving relationships and at its very worst, it made them feel ‘miserable’ and ‘abused’.

Another revealing aspect of Freitas' book is the extent to which feminist writers are claiming that hook-up culture is "empowering" for women, despite evidence of the opposite. Freitas quoted Hanna Rosin's book 'The End of Men' which had claimed that the perfunctory nature of sex in a hook-up is essential to support a wider landscape of sexual empowerment among today's young women.

According to this theory, ambivalent sex is useful, as it does not tie a young woman down. Meanwhile, The American Psychological Association review: Sexual Hookup Culture has shown the disturbing psychological consequences, for both men and women, which includes unwanted sex (mostly alongside alcohol and substance abuse), profound regret and feelings of shame and depression.

While most couples did not expect a romantic relationship as the outcome of a hook-up, fully one third of men and almost half of women ‘ideally wanted’ such an outcome.