How do you view love? Is it a strong bond or just a positive feeling? Scientifically, it can be caused by the release of chemicals like dopamine, serotonin, oxytocin etc. Do you think chemical reactions would make you give up your life for your friend? What is your take on this topic?
Thanks for all the answer, Even I am not the one who asked the question. 
I just don't know what love really is. Maybe if you viewed love as hormonal or sexual desire than maybe it can be explained by chemical reaction, maybe biochemistry. But love as a feeling often can't be explained using rational thought. It often irrational.
True mate thats what exactly the case and depend on how we look it,because many people misunderstood the meaning of love and some others thought love is the same with lust,that the more you need the person physically is the more you loved them