An increasing number of Americans diagnosed with Alzheimer’s disease and other dementias has put families through heartache, cost hundreds of millions in health care expenses and turned millions of spouses, adult children, friends and neighbors into unpaid caregivers. Today, more than 5 million Americans are living with Alzheimer’s disease. And as thousands of boomers turn 65 each year, experts say we’re facing an overwhelming wave of more cases. Currently, there is no cure for Alzheimer’s or an effective way to halt or slow its progression.