article_snippet: Pictured is a family who was involved in a new study. 
article_snippet: Pictures of strangers and of long-term acquaintances, such as work colleagues were also shown.
article_snippet: We did not detect this effect with pictures of long-standing acquaintances.
article_snippet: Both are coming home, Both're finished with work for the day, and Both're about to eat and share food,' Jaeggi continued. '
article_snippet: I think the 'absence makes the heart grow fonder' effect could potentially be very widespread,' said Jaeggi. '