Key Points:
- Bill Gates supports a new blood test that finds Alzheimer’s early — years before memory loss starts.
- The test could help doctors treat or slow the disease with new drugs approved by the FDA.
- Gates urges governments not to cut science funding, saying we’re close to major breakthroughs.
Billionaire Bill Gates has shared exciting news about the fight against Alzheimer’s disease. He says scientists are now closer than ever to stopping the painful illness — and he couldn’t be happier.
In a personal blog post published on Tuesday, June 17, the Microsoft co-founder said he is filled with hope. The reason? A brand-new way to find Alzheimer’s early — using a simple blood test.
Gates said he saw this new test in action during a visit to Indiana University’s School of Medicine in 2024. It gave him a front-row look at a tool that could change how we detect the disease.

Alzheimer’s disease affects more than 7 million people in the United States alone. That’s around one in nine people over the age of 65. But now, Gates says we’re finally getting closer to stopping it.
A Simple Blood Test Could Change Everything
According to Gates, the new test looks for signs of “amyloid plaques” in the brain. These plaques are one of the first warning signs of Alzheimer’s.
What makes the test special is that it can find signs of the disease 15 to 20 years before symptoms begin. This means doctors could catch Alzheimer’s early — before memory loss starts.
Gates believes this could lead to better treatment and even prevention. He called the discovery “a real game-changer.”
FDA-Approved Drugs Show Hope, Too
Along with the blood test, Gates mentioned two drugs that have recently been approved by the US Food and Drug Administration (FDA).
These drugs don’t cure Alzheimer’s, but they help slow it down. For people and families dealing with the disease, even a small delay can mean more quality time.
Gates said combining early testing with these drugs gives him hope for real change. “It’s an exciting time in a tough fight,” he wrote.
A Personal Battle For Bill Gates
For Gates, the Alzheimer’s fight is personal. His father, William Gates Sr., battled the disease before passing away in 2020.
“Watching my brilliant, loving father go downhill was brutal,” he shared in the post.
But now, Gates sees progress that didn’t exist five years ago. He’s thrilled about how far research has come — and he wants the world to keep going.

Gates warned against cutting money for science, especially now. He said recent budget cuts to US health groups like the National Institutes of Health could stop this progress. “Now is the time to spend more on research, not less,” he urged.
Even with all the good news, Gates knows there’s still a long road ahead. “There’s a lot more work to do,” he wrote. “But I’m amazed by how much we’ve learned recently.”



