To find the culprit that stops tau proteins and amyloid peptides from functioning improperly, scientists realized it would be best to study brains at an earlier age, when they are alive. a remedy. Studying living brain tissue would yield many more discoveries that dead brain tissue would not. Techniques such as magnetic resonance imaging (MRI) and position emission tomography (PET) are actually not as useful for studying living brain tissue, as they can provide a focus down to a millimeter on the brain, but this would not be sufficient to detect brain formation. plaques and tangles that require more concentration down to about a tenth of a milliliter. But there are new tools such as the multiphoton confocal microscope which makes it possible to observe brain activity more efficiently and precisely. Additionally, Amyvid's FDA approval has made it easier to obtain visuals on PET scans because its goal is to dye amyloid proteins that could not be seen in conventional PET scans. Thanks to these amazing innovations, scientists are close to developing genetic tests that could determine an individual's risk of developing Alzheimer's disease.