[header] How to maintain your energy throughout the day [title] Maintain a sleep schedule. [step] Your body has a natural circadian rhythm that adapts to a regular sleep/wake cycle. If you go to bed and wake up at roughly the same time each day, it will be easier to maintain your energy throughout the day as you'll wake in the morning feeling rested and refreshed. 
[substeps] Even on the weekends, try to maintain your schedule. Even a small deviation from your schedule can affect how rested you feel.