Why Smart People Are Stupid (The New Yorker.) A new study suggests that the smarter people are, the more susceptible they are to cognitive bias.
Slime Molds Show Surprising Degree of Intelligence - A creature with no brain can learn from and even anticipate events. (via)
Nootropics ("smart" drugs) - all wish to be smarter, correct ? And - while exercise, nutrition, learning, travel, and social interaction (the last 3 via release of neurotrophins) effectively do this, Nootropic drugs have been researched since the 1950's and have been shown to cause at least short term cognitive function enhancement. Piracetam, the first of this drugs, shows promise in the treatment of Alzheimer's and Attention deficit Disorder. Alas, as with poor little Algernon, the effect seems temporary. Nootropics can be a little difficult to acquire in the US. Beer is not a nootropic, but sex on the other hand.....
Marijuana's effects on the brain are reversible "It appears that cognitive impairment from marijuana use is temporary and related to the amount of marijuana that has been recently smoked rather than permanent and related to an entire lifetime consumption." Hmm, I suppose it's good to know I can go back to being smart after being stupid for a little while.