If it's Friday, it must be time to look at some interesting articles from ScienceBlog:
Color-coded markers may help doctors diagnose neural diseases through the eyes
Scientists: can now block heroin, morphine addiction
An artifical retina with the capacity to restore vision
A vaccine for heart disease?
Fruity science halves fat in chocolate
Why do organisms build tissues they seemingly never use?
Common parasite may trigger suicide attempts
Earthworms soak up heavy metal
Enjoy your weekend, and I'll see you on Monday!