Your body plays a big and important role in life, and also in your work. If your body disagrees, you won’t be able to focus, and won’t be able to do efficient work.
A crucial factor is sleep. If not well rested, concentrating will feel hard. While possibly being able to physically come to work, the actual work will definitely not be very efficient, or as efficient as it could be.
Try to improve your productivity by having a good sleeping schedule and hygiene. There are many smaller things which can help with this. Tracking your sleeping time will give insight on what to improve. Using a smartwatch, like the Apple Watch, can help further.[…]