Physiologically laughter can be subcategorised into various groupings depending upon the extent and pitch of the laughter: giggles, clicks (which can be almost silent), chortles, chuckles, hoots, cackles, sniggers and guffaws are all types of laughter. Smiling may be considered a mild silent form of laughter. Some studies indicate that laughter differs depending upon the gender of the laughing person: women tend to laugh in a more "sing-song" way, while men more often grunt or snort. Babies start to laugh at about 4 months of age.
On the other hand, laughing at somebody is considered to be ridiculing an individual, or as Alexander Bain put it, degrading some notable "person, interest or institution". Some consider this form of laughter to be the mind's way of "purging" negative, unwanted things and thoughts not of the self. For example, when a young boy sees another boy fall down, he may laugh because he knows that he does not want to fall down himself, therefore by "laughing" he is pushing the negative thought of falling down out of his mind.
Laughter is a part of human behaviour regulated by the brain. It helps humans clarify their intentions in social interaction and provides an emotional context to our conversations. Laughter is used as a signal for being part of a group — it signals acceptance and positive interactions. Laughter is sometimes contagious and the laughter of one person can itself provoke laughter from others. This may account in part for the popularity of laugh tracks in situation comedy television shows.
While it is normally only considered cliche that "laughter is the very best medicine," specific medical theories attribute improved health and well-being to laughter as it triggers the release of endomorphines. A study demonstrated neuroendocrine and stress-related hormones decreased during episodes of laughter, which provides support for the claim that humor can relieve stress.
And yeah, i think i'm relieved now...
Life is beautiful guys.... SMILEEEEE!! ^_^
And here's some chuckles for you... ^_^



Have a great weekend guys ^_^ luv ya'll muaahh!
Love,
-kathy- ------------0000-------------0000------------0000------------0000---------