How to Protect Your Brain and Live Longer | Dr. Andrew Weil
The School of Greatness
Lewis Howes
4.8 • 22K Ratings
🗓️ 10 April 2026
⏱️ 64 minutes
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| 0:00.0 | I wanted to ask you first about cognitive decline. |
| 0:08.1 | And I feel like a lot of people, especially over the last few years, have a fear of |
| 0:12.1 | cognitive decline from foods they've eaten, from potential injections they've taken, or other |
| 0:19.2 | things they've, or medicines that maybe are hurting or helping. |
| 0:23.1 | So I wanted to talk about cognitive decline first and your thoughts about this. |
| 0:27.9 | I think there's a lot of fear out there about it also because people know people with cognitive |
| 0:32.2 | decline. You know, we people have relatives who've developed dementia. We see people whose |
| 0:37.0 | memories are failing. I know a lot of |
| 0:39.0 | people if they if they have memory lapses immediately begin to think am I getting Alzheimer's. You know, |
| 0:43.9 | there's just a lot of fear around that. Yeah. So what is the root cause of Alzheimer's? We don't know. |
| 0:49.0 | We don't know. I mean, there is a minority of cases are genetic or familial, but most of them aren't, and we really |
| 0:55.0 | don't know. |
| 0:56.0 | I have to say my gut feeling with a lot of neurodegenerative disease, certainly with Parkinson's |
| 1:01.4 | disease and ALS, I think these are environmentally caused mostly. |
| 1:05.0 | Really? |
| 1:06.0 | Now is that environment like what's in the air environment? |
| 1:09.1 | It's probably everything, but a big one is things like exposure to agrochemicals. |
| 1:12.6 | There's a higher incidence of Parkinson's and agricultural workers. |
| 1:16.6 | I think all the stuff we're reading about plastics. |
| 1:18.6 | I think it's good to be just cognizant of potential toxins in the environment. |
| 1:23.6 | Right. |
| 1:24.6 | But I will tell you that in terms of preventing cognitive decline, probably the two most |
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