Key points from article :
Millions of people have been misdiagnosed with Alzheimer's disease.
"Late" (limbic-predominant age-related TDP-43 encephalopathy) is a distinct disease.
It tends to cause a more gradual decline in memory.
It may partly explain why finding a dementia cure has failed so far.
Though these dementias can co-exist.
Late appears to affect the most elderly, i.e. people over 80.
Having a better understanding of Late might lead to the discovery of new treatments.
