In general, in preparation for the MRI examination, you will be required to wear earplugs or headphones to protect your hearing because many scanning procedures produce loud noises. These loud noises are normal and should not worry you. they should also wear lead coats
the creation of energy through the combustion of carbohydrates in the absence of oxygen according to google
Put your mind to it and make certain goals that you want to accomplish by a certain time etc. you won't see improvement unless your commited to your goals && if you meet your goals make new goals to accomplish