tDCS Works Better Than Caffeine

So, using tDCS, McKinley’s lab kept 30 people up for 30 hours to see how they fared with and without fatigue interventions. Essentially, they compared the effects of 200 mg of caffeine (about equal to 2 cups of coffee) to 30 minutes of tDCS at two milliamps (mA) applied to an area of the brain called the dorsolateral pre-frontal cortex, which is very important for the cognitive processes of attention and vigilance. The results suggest that applying electricity to a brain for half an hour is...

 Mungo Park Saved by a Moment of Scientific Fascination

Park travelled on down the river as far as Silla, where, exhausted, he decided to turn back short of Timbuctoo on 25 August 1796. On the return journey he was robbed and stripped by Moorish banditti in ‘a dark wood’ before he reached Kalamia. They took everything — his horse, his compass, his hat, all his clothes except his trousers and his battered boots (‘the sole of one of them was tied onto my foot with a broken bridle rein’). They had evidently intended to kill him, but saw him...