Through no other sensory channels can humans convey positive emotional signals among themselves as quickly and unmistakably as through touch. The spectrum ranges from affection, forgiveness and joy to approval, praise and appreciation. Photo: dpa
We do it when we see a friend or loved one after a long separation. And when we comfort someone. Or when we're at someone's sickbed and simply want to let them know we're there for them.
It can be a warm embrace, a fleeting caress on an arm, or holding a hand: A touch says more than a thousand words.
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