Alzheimer; News from the web:

And thanks to a new imaging system we can see now exactly how.

Researchers at Yale University have led development in to a new type of brain scan designed to detect changes in synapses associated with common brain disorders. Until now, researchers have only be able to detect these changes during autopsies, but by combining a Positron Emission Tomography (PET) scan with a new type of injectable tracer, Yale radiology and biomedical imagining professor Richard Carson was able to measure the synaptic density in a living brain.

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