Dr Williams and Dr Mattingley suspect the reason for this is that being able to spot an angry individual quickly has a survival advantage and, since anger is more likely to turn into lethal violence in men than in women, the ability to spot angry males quickly is particularly valuable.
ECONOMIST: To one emotion, men are more sensitive than women
Dr Williams, who takes over from Dr George Carey as Archbishop in October, has struck a chord with teachers and heads around the country.
The paediatrician has been joined in raising his concerns to the Welsh Assembly's health committee chairperson Kirsty Williams by Dr Cathy White, a consultant paediatric neurologist, and Dr Geraint Morris.
The covenant was signed on behalf of the Church of England by Dr Williams, the Archbishop of York, Dr David Hope, and the secretary general of the Archbishops' Council, William Fittall.
Dr Williams also issued a call for peace in the Israeli-Palestinian conflict in the Middle East.
Society as whole benefited from efforts to engage with young people, said Dr Williams.
Dr Williams was taken to the University Hospital of Wales where he was pronounced dead.
Repeatedly the respect and loyalty that Dr Williams earned, was able to turn the tide of opinion.
Earlier in September, Dr Williams said he had done too little to prevent the divide over homosexuality.
Dr Williams was skilled in addressing those questions, but few would claim that he succeeded in his aim.
Dr Williams was also wasted because of the Church's preoccupation with its divisions.
Dr Williams responded to the criticism by saying his earlier comments on sharia law had met with "scant success".
Dr Williams also spoke about the row over his remarks concerning sharia law.
It was donated to the hospital last year, and has since transformed the care Dr Williams can offer HIV patients.
Dr Williams believes efforts to engage girls by telling them that science is relevant to cosmetics and fashion are misguided.
BBC: State schools 'failing girls who want to study physics'
"Regenerating communities is not easy and the search is always on to find how to do it, " said Dr Williams.
Dr Williams is about to meet the Pope at a time when attention is focused on relations between the two churches.
Even so, Dr Williams was accused of a failure to lead, that is a failure to command, cajole and coerce Anglicans.
Dr Williams says only a not-for-profit solution can sustain local news, with new endeavours subsidised by levies on the communications industry.
The Catholic Herald, to whom Dr Williams gave his interview, may not have expected its pre-visit chat to turn into a scoop.
Dr Williams' speech was praised by his predecessor as archbishop, Lord Carey of Clifton, who emphasised the continuing strength of traditional families.
Dr Williams has consistently supported the ordination of women, and previously showed no objection to the appointment of an openly gay bishop.
The election process began in March, when Dr Williams announced that he would be standing down at the end of the year.
Dr Williams, 61, was appointed the 104th Archbishop of Canterbury in 2002.
Dr Williams has consistently supported the ordination of women, and previously showed no objection to the appointment of an openly-gay bishop in Reading.
Dr Philip Giddings, speaking on behalf of the laity, said Dr Williams had worked with "passion and perseverance" for unity within the Church.
Last October Dr Williams delivered a sermon in Zimbabwe as part of an African tour to try to heal divisions within the Anglican Church.
In his Christmas message, Dr Williams, 62, acknowledged that a recent vote not to allow women bishops in the Church had damaged its credibility.
BBC: Archbishop Rowan Williams delivers final new year message
Cardiff and Vale of Glamorgan coroner Dr Lawrence Addicott decided against an inquest after a post-mortem examination because Dr Williams' death was natural causes.
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