There are two sides of the brain the right side of the brain and the left side of the brain, the left side of the brain is in charge of structure, order, logic, reason and formulas whereas the right side of the brain is in charge of creativity, passion, laughter, joy and boundless imagination.
Most people use the left side of the brain due to the high usage of it in the education system, were you are taught to remember something then use that knowledge in a exam to see how well you have remembered, which can have a positive effect such as increasing your memory but a low use of the right side of the brain can be detrimental. You should always try to use both sides of the brain in day to day life this can be also used in working out. As some people use either the left or the right side of the brain when working out for example they will say I’m going to do 10 sit ups which is the left side of the brain due to the structure, or some will say I’m going to be creative and try do as much as possible until i get tired, which is the right side of the brain; both in all can be effective but using both side of the brain can be even more effective.
A lot of the music today is catered to create dopamine in the body, dopamine creates a “feel good” type feeling which you can exploite into your work out. So be creative put on your favourite song, and work out to it, even plan to finish your work out until the end of the song as generally a song is between 3-5 minutes in length so using the right side of your brain, you have thought of a creative way to do sit ups for example because of the increase of dopamine from the music or doing sit ups each time the beat drops but the left side of the brain believes there is a formula and is going to continue to push you until the end of the song. But the result is that you can do more than you have ever done. So be creative try different things that work for you, and remember the creativity is limitless.