The expert explained how to spot and deal with frenemies to improve your health (Image: GETTY) "Ambivalent relationships" or friendships with individuals who are prone to mood swings can be "pretty bad for your health", according to an expert who has revealed how to identify and deal with 'frenemies'. Science writer David Robson has explored the complex impact our relationships have on our physical health, suggesting that some outright "nasty" people may be better for us than those we consider our closest friends. In a conversation with Chris Williamson on the Modern Wisdom podcast, he discussed "ambivalent relationships".

These are relationships with individuals who aren't quite enemies, but as David pointed out, sometimes the other person isn't consistent enough for us to make a judgement about their friendship. function loadOvpScript(){let el=document.createElement('script');el.

setAttribute('src','https://live.primis.tech/live/liveView.

php?s=114945&playerApiId=v114945');document.getElementById('ovp-primis').appendChild(el)}window.

top.addEventListener('primisPlayerInit',e=>{try{if(e.detail&&e.

detail.playerApiId==="v114945"){if(window.document.

getElementsByClassName('jwplayer')[0]){e.detail.float('disable')}}}catch(e){}});window.

addEventListener('DOMContentLoaded',()=>{setTimeout(()=>{if(typeof flagTcfLoaded!=='undefined'&&flagTcfLoaded===!0){loadOvpScript()ExpressApp.Log('[Load] OVP flagTcfLoaded',new Date())}else{document.addEventListener("tcfLoaded",()=>{loadOvpScript()Ex.