Why do humans have emotions?
411983
It's not just humans - most mammals (and other animals to a lessor extent) have emotions.  They serve many key functions for survival:\n\nThey give a reason to act.\nThey give a reason for animals to attract each other.\nThey imprint important experiences in the brain.\nThey help animals make decisions.\n\nThere's probably more, but that's a good start.
582535
Emotion Location\nWith all the other things it does, is it any surprise that the brain runs your emotions? Maybe you got the exact toy you wanted for your birthday and you were really happy. Or your friend is sick and you feel sad. Or your little brother messed up your room, so you're really angry! Where do those feelings come from? Your brain, of course.\nYour brain has a little bunch of cells on each side called the amygdala (say: uh-mig-duh-luh). The word amygdala is Latin for almond, and that's what this area looks like. Scientists believe that the amygdala is responsible for emotion. It's normal to feel all different kinds of emotions, good and bad. Sometimes you might feel a little sad, and other times you might feel scared, or silly, or glad.
393029
It is a response tiggered by emotions configured in past experiences.\nCrying is a more complicated process than one would at first imagine. First of all, there are really three different types of tears. Basal tears keep our eyes lubricated constantly. Reflex tears are produced when our eyes get irritated, like with onions or when something gets into our eyes. The third kind of tear is produced when the body reacts emotionally to something. Each type of tear contains different amounts of chemical proteins and hormones. Scientists have discovered that the emotional tears contain higher levels of manganese and the hormone prolactin, and this contributes in a reduction of both of these in the body; thus helping to keep depression away. Many people have found that crying actually calms them after being upset, and this is in part due to the chemicals and hormones that are released in the tears.   \n\nHow then actually do we cry? The psychic tears (or emotional tears) require an emotional response, or trigger to be activated. This response can be caused by an outside source, either pain or loss of love, etc., or from an inside source (self-realization of one's life and others). When emotions affect us, the nervous system stimulates the cranial nerve, in the brain and this sends signals to the neurotransmitters to the tear glands. Thus, we cry .The largest tear gland, the lacrimal gland produces the tears of emotion and reflex. Many believe that the body, in times of emotional stress, depends on this gland to release excess amounts of chemicals and hormones, returning it to a stable state.
385365
Because they typically have issues about self-hatred or they have problems with a painful emotional life. Usually they are girls, and often they have problems at home or at school. When they can't "feel" emotional pain, they often try to "feel" the physical pain. The reasons are complex, but that's a simple answer.
491679
when your brain senses something "emotional" it releases seratonin, which work with your endorphines in triggering emotional reactions....sometimes there is so much seratonin in your system that your endorphines are overloaded and this comes out in an outburst of emotion
8028
that is a good question have you ever saw someone you love with someone else or they said something that makes you feel like you're on a roller coaster or your heart is going to beat out of your chest, or been so mad you actually feel the heat come from your body and you adrenaline going crazy, that is feeling. At the time you never go through the process of thinking "that hurt i am going to feel sick now or i am mad"  i think feeling is more of a non planned event that happens quickly and thinking is more rational, and patient.
223845
Yes....all beings have emotions, which they express humans do not always recognise.\n\nit is a relative recent discovery by the scientific fraternity, that all beings with cognative abilities have emotions. feeling of Love, pain, happiness, fear. This includes your clam.\n\nFear is the most prominent in all species including humans. This results in either attacking, submission, defence etc.
19959
Happy and Sad are controlled by chemicals in the brain, just like any other emotion.  The chemicals may be triggered by our actions and thoughts, meaning we control the mind.
345826
Not everything has to be an adaptation, but assuming it is, there is likely an adaptive value to demonstrating emotion in a social animal such as humans. I don't know the specific answer to your two questions, but you might start with Darwin's "Expression of Emotions in Man and Animals", he discusses it there, I'm sure there's been work since.
92210
Fear is a human (and even animal) reaction to an external or internal stimulus that falls within paramters unique to each organism.  Fear is highly individualized as are most emotions.  For example, a spider crawling on my arm might not be a sufficient stimulus for me to provoke fear, however, it might cause you to jump out of your skin.  \n\nIn humans, fear does not require an external stimulus (some animals also seem to be able to imagine fear as well).  The child who imagines a monster in a closet does not need an external stimulus to feel fear.\n\nFear is stimulated through the use of sensory organs and is entirely brain centric. Your brain has what's called a startle circuit. It runs through the mid- and lower brain, and is modulated by a structure in your brain called the amygdala.\n\nBecause fear is all in your mind, you can control it (this is where "courage" comes in).  However, there are two stages of fear, pre encouter and post encounter.  There are physiological components to be understood as well.  When the startle potentiation is activated, a small part of the brain called the hypothalamus which gets your heart pumping faster, dialates your eyes and in short, gets you ready for the final stage of fear, circa-strike.  This enable you to get extra energy sharper senses, etc, everything you need to fight off an attacker (hopefully).\n\nSo what is this all about?  Fear is an important component of an animals emotional makeup that allows the animal to survive.  Fear is healthy...it tells us when we are about to do something stupid and it also can give us an edge in a dangerous situation.  When controlled and managed properly (courage) it can allow us to do almost superhuman things.  \n\nThe difference between most animals and humans is that human have other choices than fight or flight when confronted with fear, unlike most animals.  We don't have to react according to our instincts and have communicative and other tools to deal with danger.\n\nHope this was helpful.
402744
people cry because it hurts sometimes,................. sometimes we feel to much happines and tears start to fall, and suddenly you jus realized it is only because your eyes started to get irritated... \n\nseriously... crying is normal, simply because human is emotional...
570194
You know, I believe it's men. Privately we are pretty emotional. We dont like showing it in public. But if you think of all the great composers and artists they were all men. To create beauty requires emotion of the highest sort.\nEmotions are both happy and sad dont forget(and all the bits in between).Please take a look at http://thebaldchemist.blogspot.com for afun look at life and it's emotions.Enjoy it.\n\nTake care
255830
Just having a closed-eyes imagination that what they are and what I am? Concertration on existed exeriences and sorting out the phobiatic emotions to deal in personal history in mind gives the way for confidence. This can be a natural way of emotions but many don't get it. There is also a thing that they get it in any other way.
14008
Crying can mean many different things. People cry when angered, sad, happy...it's basically an action tied to an emotion, like a laugh. \nIf something makes you cry it doesn't have to mean you are sensitive or anything inparticular, it could just be the way your body reacts to the situation. \nSomething could happen and cause one person to become so saddened and depressed they kill them self yet never shed a tear. \nDon't put too much into the tears..take notice to the feelings behind them.
509847
Hi u\n\nWEll like we all mayb know. We have emotions, whn we r happy we always kinda see things possively in front of us n more into "sound goods" music. Its the same thing about bein sad n being full of energy n more emotions. Whn we sad we tend to remain sad uptill something dont cheer us up. Listenin to sad songs whn we r sad is like wat the mood wants. Untill somethnings comes in, happy moods. \n\nI love sad songs, not only listen to thm whn i am sad but i pay more attention to the words which could help me.
320927
No - I don't think so...it's a state of being...\n\nSad, excited, happy, disappointed, sad, etc are emotions!
472525
Cause humans are mostly insecure and conformistic.\nThey thus need an easy way out of their dilemmas as well as the relief of afterlife and the feeling of low responsibility adhered by religions(even if their dogma claims otherwise).\nMoreover there is a natural tendency in humans to belong in groups. A strongly structured group requires an opposing group. Religious groups provide both these features in abundance.