One day, in my day job someone wanted a task done and I had to think — I tried, but, I did not have any thoughts. I felt numb. I felt lethargic. I felt braindead. I had been observing these symptoms for a couple of months now. I recently had a physical exam and everything came normal. Some of my colleagues (who were in their 40s) said our faculties slow down once we hit 40. ...