Alzheimer’s is waging a war on millions. Congress could help us win it

Early detection blood tests exist but Medicare policy means people often get diagnosed too late for effective therapies.

Roughly one-in-nine Americans age 65 and older suffer from dementia caused by Alzheimer’s disease. This represents about 7.2 million people, according to the National Institutes of Health. Chances are, you know someone among them.

Alzheimer’s is a thief. It steals memories, identities, independence and, ultimately, it takes lives. It is the sixth-leading…