Why Does the Rate of Alzheimer’s Increase with Age?
Healthy brains regularly clear Alzheimer’s-causing amyloid-beta. Our ability to do so slows with age. A sizable study demonstrated that in our 30s, a healthy brain clears amyloid-beta every four hours. At 80 years old, it takes more than 10 hours. This may explain the link between age and Alzheimer’s, as well as what we need …