Time

Planning a lot

The number one reason for procrastinating is perhaps the task at hand is too hard to accomplish, and the mind would prefer more manageable tasks. Instead of writing up your result from the last set of regressions or editing the paper draft for one more time, your brain is easily satisfied at checking emails or grading homework. The small and manageable tasks make you look busy and bring you the sense of achievement when you cross them off your to-do list.