For a long time, Alzheimer's researchers have been unable to figure out the real culprit between two kinds of tangled proteins found in patients' brains: amyloid plaque and tau tangles. Recent research has revealed that they act in collusion. While amyloid triggers the disease, tau propagates it from neuron to neuron, killing it. In this video, watch how a new drug that checks the spread of tau in mice brains may be the key to developing an Alzheimer's therapy for humans.

If you want to know more about Alzheimer’s-associated proteins called beta-amyloids, read more here.»