Article of the day: Contagious smiles...
AOL Health: Open-mouth Laughs are contagious
Laughter is hailed as the best medicine, but not all laughter is equally contagious.
New research has found that people respond more positively to open-mouthed laughter and are more likely to laugh along with it...
Laughter is hailed as the best medicine, but not all laughter is equally contagious.
New research has found that people respond more positively to open-mouthed laughter and are more likely to laugh along with it...