We love the sound of laughter – but only if it’s spontaneous and open mouthed, a new study reveals today.
Scientists discovered laughter is only truly infectious if its an open-mouthed ‘ha-ha’ rather than a muted snigger.
We love the sound of laughter – but only if it’s spontaneous and open mouthed, a new study reveals today.
Scientists discovered laughter is only truly infectious if its an open-mouthed ‘ha-ha’ rather than a muted snigger.