Richard Restak, MD, author of Poe’s Heart and the Mountain Climber : Exploring the Effect of Anxiety on Our Brains and Culture. Does Iran really mean to give up its nuclear ambitions?; The Europian Union wants a new generation nuclear power plants: Plants that use solar power; Can the heart regenerate heart tissue after heart attack? New studies show new protein seems to regenerate new heart tissue; Environmentalist disappointed that the 8-nation Arctic Council failed to make any resolution to prevent the thawing of the arctic; New kind of chemical pollutant found in fish in Lake Michigan.