I believe most people have a natural tendency to procrastinate. I believe it comes to the fact that humans are naturally good at working under-pressure (no matter how much you hate it).
This one! I got too caught up having fun traveling for my interviews that I procrastinated on my biochem test and received a C.....below the average grade...Now i find myself studying biochem everyday as part of my daily routine. Brush teeth, take shower, read some biochem, eat food etc. This method worked wonders! gonna kick ass on the 2nd exam hopefully.For me, I just get a C on a test, think about how all the work I've done so far is for nothing and I'll never be a dentist, and that gets me out of my procrastination streak real quick.