"Did I come across as weird when I said that?" "I should have smiled more naturally." Have you ever had nights where, the moment you get into bed, the day's failures and regrets pop into your head one ...

Two distinct pathways of brain aging emerged in a cellular analysis of post-mortem brain tissue. One trajectory led to Alzheimer's disease, the other to an alternative brain aging pathway. Cellular ...

It's extremely difficult to study the inner workings of the human brain, and researchers who seek to do so usually rely on postmortem samples that have been donated by volunteers. But a new study has ...