BRAIN

Dopamine is not a drug or some magical case ,It is a neurotransmitter ( Neurotransmitters  are endogenous chemicals that enable neurotransmission. It is a type of chemical messenger which transmits signals across a chemical synapse). Its main source of origin is  Substantia nigra ;  ventral tegmental area ; FIG.1  the one shown in red . so  It is an  amine  synthesized by removing a  carboxyl group  from a molecule of its  precursor chemical   L-DOPA , which is  synthesized  in the brain and kidneys. dopamine signals the perceived motivational prominence (i.e., the desirability or aversiveness) of an outcome, which in turn propels the organism's behavior toward or away from achieving that outcome. so basically this neuron when activated produce reward giving system which means that if dopamine increased much which is not require it is harmful and also if it is not in certain level then also it it...

The human brain is a network of approximately one hundred billion neurons. Different experiences create different neural connections which bring about different emotions. And depending on which neurons get stimulated, certain connections become stronger and more efficient, while others may become weaker. This is what’s called neuroplasticity. Someone who trains to be a musician will create stronger neural connections that link the two hemispheres of the brain in order to be musically creative. Virtually any sort of talent or skill can be created through training. Rüdiger Gamm, who was a self-admitted ‘hopeless student’, used to fail at basic math and went on to train his abilities and became a famous ‘human calculator’, capable of performing extremely complex mathematics. Rationality and emotional resilience work the same way. These are neural connections that can be strengthened. Whatever you are doing you are doing at any time, you are physically modifying your brain to become bette...