What brand of coffee has the most caffeine in it?Watch
Which brand contains the most caffeine?
If you're intent on coffee as your route, just drink illy espresso. Make it with a proper espresso maker (doesn't have to be a machine- stove-top espresso makers are £25).
I've tried "rocket fuel" it's disgusting, just get some red bulls if all you want is a kick up the arse.
Or buy some pure caffiene and some scales (you can severely overdose if you don't measure pure caffiene correctly)
I'd also agree with the sleep thing, studying on no sleep is just counter productive. You'll get more done with a full nights rest, reduced cognitive function due to lack of rem sleep coupled with caffiene and the associated side effects make studying or understanding anything difficult.
Don't buy the rocket fuel instant coffee, it's disgusting.
It is high in caffeine and is actually the nicest coffee I have had to date. Some coffees have a nasty bitter taste but Lava Java tasted smooth and almost chocolate like down to the last sip. I drink mine black with one or two sugars and I find that with Lava Java I don't need as much sugar as I usually use it to mask the bitterness. The high caffeine is an added bonus as you tend to drink less.
I never used to like coffee but I realised it is instant coffee that I dislike. You can not beat a good cup of real coffee. A cafetiere is a good investment if you enjoy coffee.
If you are going to be drinking something night after night during the revision period may I suggest you invest in something you will enjoy or drinking it will become a chore.
Though a strong cafetiere or double espresso gives me a kick start on a particularly dreary afternoon.