you do not get the SMS lingo used in Facebook/Orkut by your younger cousins even after reading them multiple times.
just the thought of hitting the gym leads to pain in the shoulders.
new joinees in the office pay attention to every word of yours as if you were a professor. Professors are ancient!
you think of going out for a walk. Just think.
forget nightouts, being awake till just 2 AM in the night leads to dark circles.
you are well adjusted with the idea of turning 30 in a couple of years.
you pass through your old college and think of the students there as little kids. You were one of them. Just a while ago.
you get so depressed that you write about it.