Take regular breaks

It's important to have an idea of what your daily priorities are and tasks you need to complete, preferably the night before. 

Also, make sure you prepare in the evening the outfit you're going to wear and the meals for the following day. Doing this will save time in the morning, and reduce decision fatigue.

Take all of your tasks and place them into four quadrants:

• To do first: the most important responsibilities that need to be done today or tomorrow.
• Schedule: important tasks that are not urgent.
• Delegate: essential items that are not important.
• Don't do: tasks that aren't important or urgent. 

• The best kind of light you can have in your office is natural light. It helps our bodies maintain our internal "clocks" or circadian rhythms which affects our sleep and energy. 
• Poor lighting, whether it's dim lighting or harsh lighting from overhead fluorescent lights, can cause eye strain, stress, and fatigue.
• Don't sit with your back to a window unless you can shade it.
• Don't sit facing a window because that will make reading a monitor difficult. 
• If you use a task lamp at your desk, position it so the bottom of the lampshade is at about the height of your chin when it's on.

• Indoor plants prevent fatigue during attention-demanding work. 
• Even just having a window view of live greenery can be restorative and keep us focused.
• A peace lily plant requires little sunlight to survive and you only have to water it when the soil is dried out and is also great for cleaning the air.
• Cacti and aloe plants are other low-maintenance plants to consider.

Don’t make these lists too close to bedtime.

According to the National Sleep Foundation, the ideal temperature for shut-eye is around 65 degrees. 

The cooler you are, the sleepier you become, so turn down the thermostat.