Is sex addiction really a disease or just a convenient excuse?

As sex scandals become more rampant, experts struggle to understandu00a0-- is the craving for sex really a disorder or simply a convenient excuse to wriggle out of trouble?

The American Psychiatric Association (APA) is debating whether sex addiction should be added to its Diagnostic and Statistical Manual of Mental Disorders.

Ever since Tiger Woods' enrolment to rehab for sex addiction last year, rehab facilities have found themselves swamped with requests for sex-addiction treatment.

The proposed definition of sexual addiction by APA says you have an illness if you spend so much time pursuing intercourse or masturbation as to interfere with your job or other important activities, reports TIME magazine.

But the definition is vague in that it doesn't specify when it becomes too much or at what point do partners in a healthy relationship become too focused on sex? And what constitutes too little sex.

In a November 2009 Archives of Sexual Behavior paper, Dr. Martin Kafka, a Harvard Medical School professor and a prominent member of the APA work group on sex disorders, defined "hypersexual desire" among men as having seven or more orgasms per week for at least six months after age 15.

But isn't that what happens in the high school phase?

And because of this ambiguity in the definition, it's impossible to find out how many people actually suffer from this disease.

And unlike, alcoholism, where abstinence is the best solution, the same can't be said for sex, which is a natural human instinct.

According to Robert Weiss, who runs the Sexual Recovery Institute, the most seriously affected patients must enter a facility where they have no access to porn or sex workers.

They start individual and group therapy that is, ideally, grounded in a cognitive-behavioural model designed to help them find rewarding activities other than sex ufffd and consider the consequences of, say, looking at porn at work.

But Weiss admits there is no simple way to teach sex addicts how to have healthy romantic relationships.

"Almost all U.S. treatment programs tell the client to abstain, without consideration of what the client is motivated to do," writes A. Thomas Horvath, a past director of the addiction bureau of the American Psychological Association and the author of 'Sex, Drugs, Gambling and Chocolate: A Workbook for Overcoming Addictions'.

"You get the rewards; you pay the consequences; you decide," he writes.

Even science has been at a loss to explain this puzzling disease.