While studying a person must keep the mind fresh to enable better understanding and a higher rate of retention. For this, a student should regularly take breaks every 30 min. The interval of break should be 5 to 10min.  It is also important that one stays hydrated throughout the study routine. Keeping the body hydrated plays a crucial role in keeping the mind fresh. Apart from this one can also consider playing lofi music in the background which helps to keep the mind positive.