Why do we have hearts?
819032
I see by the answers you are getting that most just don't have a clue, do they?\nWe have hearts because God has a heart.  He wants yours to be in tune with His.  If your heart is in tune with His, you will have peace in every situation.  When you are hurting, He gives you strength to carry on.  He says, "I will never leave you or forsake you."  And we know He never lies, it is not in His nature.  He cannot deceive.\nHis Love is greater than a mother's love for her children.
742360
To develop our souls for eternity. To be more holy like God. We come back to Earth born over and over until we learn this. Look at this world it is full of hatred, lack of forgiveness, greed, no compassion, self centered fools, lack of sharing, no patience, no hope, no tollerance, no wisdom. We serve our selves not God. We need to realize our souls will live on. We will go to heaven and see the lives we have led in detail. What did we learn in this life, how did we see our fellow man, what did we do to help others, how did we take care of mother earth?\n\nOur purpose is to love God, become more holy, take care of others, and learn and grown so that our souls can become more. Who will populate other worlds, who will be the next explorers? Those that God chooses, the ones that represent him.
639643
cause we don't choose who we fall in love with our heart does.
974511
The heart is what pumps blood throughout the body, keeping all organs functioning. Blood flows to the body through arteries and blood flows back to the heart through veins. Its all one big system - the circulatory system.
343363
because you have a good heart.
1154250
1.  It's probably evolution.  Since the heart is a vital organ, it's not hard to imagine heart cancer being fatal.   That probably means long ago if anyone was susceptible to heart cancer, they would've just died off before breeding.  \n2.  The lungs, skins, breasts, and other body parts that usually get cancer are exposed to the outside world to get damaged.  The heart is nestled snugly in your body with little outside contact to hurt it.
446961
HI:) The heart is well represented as a symbol of love, first of all with our heart beating we are alive, isn't it? second, because when we feel an emotion our heart beats more strongly, might a passion feeling or a fear feeling, etc the heart tell us everything. If you sudlendly see someone that make you fall in love, your heart starts beating so much...for example....\nI think, in other cultures is the same, because we are all humans, i cant give a tecnhical answer because i am not a doctor, but, as we all know, that all starts inside our brain...The other, reason is related with intuition....you never said "i dont know, i felt in my heart"....emotions!!!!
1082420
Because heart pumps oxygenated blood to the various parts of the body. When the heart stops beating the body does not get its dose of oxygen.
67467
No.  The heart is just a muscle.  If you exercise, it beats more, but gets stronger and lasts longer.
282411
It's all to do with the action potential of the muscle cell. We have different sorts of them in our body...eg cardiac, smooth muscle..etc.
179080
This is a very interesting question.  I wonder if there is a scientific answer for this.  Let me google it.....\n\nhttp://www.msnbc.msn.com/id/11023208/  is a great link for reading about the connection between the heart and the brain.  This was a good question and I learned alot.  Thanks.
565322
All your heart really does is pump blood through your body.  Your emotions are caused by electrical impulses and chemicals in your brain.  What I still don't understand though, is why when somebody you love really hurts you, it really does hurt in your heart/chest for no apparent reason.
856295
totally stupid, one reason could be saying you have a small heart mumor, all they're hear is heart. it isnt bad at all me and my bro used to have one, it just means your heart goes like half a spilt second faster than a regular heart. ppl usually grow out of them.
151787
to allow the flesh to rule in our lives, giving into lust,greed, jealousy, hatred etc, we are held in bondage to sin. when we have overcome these fleshly emotions and actions, we are free, from guilt of sin, we are at peace, we can learn to love without expectations and demands.\nI hope this is what you were looking for.
369065
firstly the heart isnt in the middle as the answer above states, it is slightly offset.  the reason being is that there is no room in the centre, we have developed (through evolution) so that we need the lungs near the top, the oesophagus needs to be below the mouth and the heart is squeezed in where it can. more of  a design question than biology as other organs take precedence, the heart needs to be high in the torso to pump blood effectively, it needs to be close to the lungs as blood pressure to the lungs needs to be low to prevent haemmorhaging\n\nin other words its not in the middle because it wouldnt fit there
1115820
Because the atoms come together to make cells. The cells do different things to give us life.
220085
It goes back to Aristotle in the 400's BC ! He thought that the heart was the basis of emotions.  This notion kind of stuck around, as you have pointed out.