Sleep
From anxiety to medication or even night eating, there are dozens of things that can ruin your sleep schedule – and this will definitely show up in the way you look and feel throughout the day.
However, if you do feel well rested most of the mornings and you can honestly say that you’ve slept well, it means that your body functions normally and you’re healthy. If you don’t, maybe it’s time to change your diet or try some relaxing bedtime yoga.