Dr. Majid Fotuhi

And when they did MRIs and they looked at hippocampus, it turns out that people who have chronic insomnia has a hippocampus that's almost half the size of people who sleep normally.

I mean, that alone is a major risk factor for Alzheimer's disease because Alzheimer's disease eventually means that your hippocampus has shriveled a lot.

That's what Alzheimer's is.

And so if your sleeping is poor for years and years, you're creating your Alzheimer's disease.

Let me start with don'ts.

There's a lot of controversy about different types of diet.

And some people wonder is a keto diet better than a vegan diet and so forth.

But there's something that nobody argues about.

I don't think anybody ever said that highly processed food are good for you.

Nor has anyone told you that sugary drinks are good for you.

And nobody said that trans fats are good for you.

So there are certain principles that are unanimously agreed upon.

There's no controversy that junk food is bad for you.

What we have learned is that people who eat the standard American diet, a lot of fast food, French fries, hamburgers, they have a smaller brain than people who don't.

And many studies have shown that when you have a poor diet, you have more inflammation in your brain.

So poor diet literally dirties your brain, to put it simply.

You have a lot of inflammation that happens when you eat junk food.

Now, this is something that's not controversial.

You must avoid eating junk food.

I recommend that look at junk food like smoking.