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A laugh can be involuntary or intentional.
What is funny is so subjective, but its an interesting question impossible to answer. What is funny to one person is not funny to another. Some times funny or joy does not involve funny.
By definition lets call a laugh almost involuntary. Now people can suppress their laugh intentionally. Some people can't
The brain complexity is amazing and an understatement.
Scientist have wired seniors to the brain and measured what part of the brain reacts to different stimulus. I am not sure what part of the brain gets stimulated during a laugh, but it will involve sight or sound or both.
There is also brain chemistry involved, like endorphins which make you feel good. The old saying is laughter is the best medicine. Endorphins make you feel good or happy. When you exercise you release endorphins.
Even feel, can cause a laugh, some one feels something "funny" and they laugh.
It is like asking why people love? It is human. We are not animals, we are humans have some thing special, a soul.
The laugh is a spasm of the diaphragm which causes air to be expelled. There are other signs of laughter like facial expression or body movement. Every ones laugh is different. There are many many laughs and many are very unique. I don't think it is learned. Babies laugh and smile. I don't think it is evolution either. I think its your soul and its not there by accident.
Sorry to the answer below, but laughing is not always joy, it can be fear and nervousness. People can fake laughter or not laugh even at things they find funny. As I said it is complex. True laughing spontaneously can be from many things, even just the sound of others laughing.
What else can I help you with?
What is a word for a sudden outburst of laughter?
Guffaw
What does lachflash mean in English?
"Lachflash" is a German term that translates to "giggling fit" or "laughter attack" in English. It refers to a sudden and uncontrollable outburst of laughter.
What is the term risible commonly used for?
Risible is generally used to describe laughter. A clown is 'risible' as he causes laughter. Anything to do with the cause of laughter or the act of laughing , can be risible.
Is it illegal in Alabama to wear a fake mustache that causes laughter in church?
yes
What causes sudden pig death?
Slaughter.
What is the condition causes the sudden cardiac death?
Asphyxiation
What do you call it when a person laughs for no reason?
Uncontrollable or inappropriate laughter is often referred to as pseudobulbar affect (PBA) or emotional lability. It is a neurological condition characterized by sudden and uncontrollable episodes of laughter or crying that may not match how the person is actually feeling.
A ludicrous statement is?
It is a statement that causes laughter because of its absurdity. It provokes and deserves derision. It is rediculous.
What causes sudden water retention?
There are several causes of sudden water retention. Poor circulation, premenstrual symptoms, salt, or a blockage in the lymphatic system can all cause this condition.
A sudden surge in lh concentration causes?
a surge of testosterone in males and it causes ovulation in females.
What causes sudden vomiting without nausea?
Ingesting Ipecac
What causes sudden aggression bursts in teenage boys?
testosterone
