July 2007

• Genes influence emotional memory

  Genetic differences affect recall of positive and negative events.

  30 July 2007

• Genes influence emotional memory

  Genetic differences affect recall of positive and negative events.

  30 July 2007

• Buzzed, fit and cancer-free

  Running and caffeine guard against skin cancer in mice.

  30 July 2007

• Are big beasts' cancers self-defeating?

  Tumours on tumours might limit lethal disease in large animals.

  30 July 2007

• New genetic risk factors for multiple sclerosis found

  Genes point to the importance of immune system proteins.

  29 July 2007

• Medical opinion comes full circle on cannabis dangers

  Frequent use more than doubles psychosis risk, says new large-scale analysis.

  27 July 2007

• Dark days for NASA

  Space agency hit by claims of theft, sabotage and drunkenness.

  27 July 2007

• Single gene deletion boosts lifespan

  Mutant mice live longer, age slower and eat more.

  26 July 2007

• Sex change wipes out invasive species

  'Trojan chromosomes' enlisted in battle against alien invaders.

  26 July 2007

• Religious concepts promote cooperation

  Effect seems to work regardless of a person's beliefs.

  25 July 2007