Essentially, the human brain will adapt to the environmental situations it finds itself in. They find cab drivers (obviously) have more highly developed spatial recognition than the rest of us, for instance.
In my case, for about 2 years I have been doing most of my reading on Reddit. Most articles were small - 30 seconds to a minute of reading at most. Then I would swing to another. As such, my brain structure has adapted to this situation, but it is terribly ineffective at tackling tasks which require constant attention (my essay marks have been steadily going down).
So I've decided to go into rehab. Taking a holiday in mid-August for about 3 months, and I have bought/downloaded a huge amount of very very heady reading material (including the crem-da-la-crem of heady mind fuck material - Heidegger's Being and Time) which I intend to use to rewire my brain.