Deceitful and despicable is one description that wronged wives could apply to their cheating husbands.

Plain stupid is another. For scientists have concluded that men who sleep around are likely to have lower IQs.

It is a finding likely to prove of interest to Cheryl Cole as she contemplates her errant partner Ashley’s unfaithful ways.

Dr Satoshi Kanazawa, an evolutionary psychologist from the London School of Economics and Political Science, said the smarter a man is, the less likely he is to cheat on his partner.

His theory is based on the assertion that through evolutionary history, men have always been ‘mildly polygamous’.

That has changed today, however, and Dr Kanazawa explained that entering a sexually exclusive relationship is an ‘evolutionarily novel’ development for them.

According to his theory, intelligent people are more likely to adopt what in evolutionary terms are new practices  -  to become ‘more evolved’.

Nas’ troubles with the Internal Revenue Service have reached a new level, with the Queensbridge rapper’s debt amounting to more than $3 million.

According to court documents, Nas owes $3,365,671.26, an increase from the $2,584,206.31 lien IRS filed last week against him.

Nas isn’t the only rapper to encounter trouble with the IRS. Just last week, the organization revealed Ruff Ryders affiliate Eve’s tax delinquency with state and federal taxes, which amounted to more than $357,000.

On Jan. 19, the organization filed a $598,309 lien against fellow rhymesayer Snoop Dogg and his wife with the Los Angeles County Recorder of Deeds, the Detroit News reports. Other entertainers sought by the IRS include singer El DeBarge, who owes $354,000 in delinquent federal taxes and Boyz N the Hood actor Morris Chestnut, whose delinquent federal tax debt comes to more than $215,800.

In addition to tax woes, Nas is working to resurrect his relationship with singer Kelis. Sources for TMZ.com state the rapper has voiced his desire to reunite with ex-wife via a series of e-mails that detail where the pair can meet face to face.

The revelation is the latest development in the continuing saga surrounding the former couple. Last week, a judge ordered Nas to pay $200,000 in back child and spousal support to Kelis. The couple, who has one son, was married four years before Kelis filed for divorce in 2009.

TMZ sources state that Nas is unaware of the consequences for not paying child support, which could result in jail time. The rapper recently made $50,000 for a performance during the Sundance Film Festival, but according to the sources, spent the money before leaving the festival.

Despite Nas’ attempt at reconciliation, Kelis is reportedly adamant about divorcing the rap star as she enters a relationship with a new boyfriend.