Laboratory tests suggest that chemicals can be used to protect brain tissue and prevent brain diseases such as Alzheimer's, Parkinson's and Huntington's.

Seeing as November is Alzheimer's Disease Awareness Month, it's only fitting that an intriguing discovery about Alzheimer's and genetics was reported last month. The gene of particular interest to researchers is called TREM2, and people with a variant on that gene appear to have triple the risk of developing Alzheimer's Disease. TREM2 may hold vital clues…