Submit a tip
Do you have info to share with HuffPost reporters? Here’s how.
Neurologist, blogger,& human lifespan extension advocate
Dr. Dennis is Chief of Neurology at Good Samaritan Hospital in New York. He is an advocate of human lifespan extension and publishes the blog Extreme Longevity. Follow Dr. Dennis on Facebook and Twitter.
By entering your email and clicking Sign Up, you're agreeing to let us send you customized marketing messages about us and our advertising partners. You are also agreeing to our Terms of Service and Privacy Policy.