Synapses are microscopic points of communication between nerve cells that are heavily involved in memory, learning, habit formation, and the development of talent and character. A neural circuit is composed of neurons and their synapses. Our lifestyle choices substantially impact synapses and their neural circuits. For example: Recurrent use of a particular neural circuit for learning (i.e. learning a musical instrument) increases the size, number, and efficiency of the involved synapses. Repeated use of a brain circuit results in easier and faster learning, and therefore practice, when done correctly, indeed makes performance perfect.