National Hug Day or National Hugging Day is an annual event created by Kevin Zaborney. USA.^[1][2] It occurs on March 3rd but is not a public holiday. The day was launched on March 3rd, 1986 in Caro, Michigan, USA.^[3] There are reports of it being marked in some other countries.^[4][5][6] The idea of National Hug Day is to encourage everyone to hug family and friends more often.^[1] Zaborney cautions to ask first if one is unsure of the response. Whether you hug a family member or a friend or a stranger, the mental and physical health benefits are the same.

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All details taken directly from provider content at http://en.wikipedia.org/wiki/National_Hug_Day