Lifehacker just mentioned a post titled Relaxed Minds Remembers Better at http://bit.ly/aKVeKS
"If you're serious about getting the most mileage from that brain of yours, a new study points out that people form stronger, more lasting memories when they're relaxed."
This is exactly what i point out in this blog. Set a minimum hour and study only in that hour and after that relax.
Let your brain wonder on things apart from studies.
This not only applies to studies but to training and in your work life, do all the challenging mental stuff with a relax mind!!