Researchers found an association between low levels of vitamin D and higher risks for dementia, including Alzheimer’s disease, suggesting that aging adults make efforts to be out in the sun more, consume certain foods, or consider supplementation.

This week scientists present two important studies showing that minimally invasive testing may be within reach for detecting Creutzfeldt-Jakob disease, the human equivalent of mad cow disease.

Experts continue to debate whether or not incentivizing donors is a useful practice.