HealthArtificial embryonic stem cells tested in people for first time A type of “virgin birth” stem cell could be as powerful as embryonic stem cells but without the same ethical objections, and are being tested for Parkinson’s News
HealthHungry stomach hormone promotes growth of new brain cells Some people say that fasting makes them feel mentally sharper. The hunger hormone ghrelin may be why – and it may protect against Parkinson’s disease News