Thus, they are not only refreshing, but they will keep you moving to beat that afternoon sluggish feeling as well. (businessinsider.com)
I was so much more alert: that sluggish feeling during and after my workouts I mentioned earlier was gone, and I was getting some of the best sleep of my life. (health.com)
My grade: A It was difficult to eat meat only once a week, until I noticed how much less physically and mentally sluggish I felt. (health.com)