Preserve and protect memory with this nighttime trick

Improve your memory... literally overnight?

I know that sounds too good to be true, but maybe you should sleep on it before you dismiss it.

I've got a secret to boosting your brainpower and keeping yourself sharp as you get older, and you're not going to believe how easy it is.

It's NOT some powerful new drug with a hefty price and a bizarre list of side effects.

It's NOT a series of puzzles, quizzes, or brain-training games.

It's NOT even a hot new supplement.

It's just the opposite, as new research reveals how the real key to better memory is in something we all learn the day we're born.

Go to sleep!

Yes, friend, ordinary shuteye can do more than help you feel refreshed and rejuvenated.

It can protect the essential brain cells that help you to form, store, and retrieve your memories.

The new study shows what happens inside the brain when you get high-quality sleep -- and what happens when you miss out.

It reveals how the entire process of building those memories relies on two separate types of electrical waves that flow through your noggin while you snooze away.

When you sleep well, those two types of waves synchronize, and your memories can form.

When your sleep is lousy, they fall out of sync.

It doesn't take much to throw them out of rhythm, either. If they're out of sync by just 50 milliseconds -- just 0.05 seconds -- you could suffer from problems like the memory loss that could eventually lead to dementia.

In a series of sleep experiments, researchers asked volunteers to remember pairs of words, studied their brains as they slept, and quizzed them the next morning.

The more synchronization the sleepers had in their brainwaves, the more of those word pairs they were able to remember during the tests.

But here's the catch: The older volunteers had less synchronization right out of the gate, and they were less likely to remember the word pairs as a result.

The research team is already talking about developing methods and electromagnetic gadgets that might put these brainwaves back into sync -- like maybe sleeping with some kind of special helmet.

Who knows? Maybe that'll work.

But there's something else you can try right now.

Eat a cup of raspberries!

The key to the whole puzzle is in slow-wave sleep, a phase of sleep many older folks struggle to reach, which is why they often have these sync problems.

Studies show that eating more fiber can induce slow-wave sleep, helping you reach that important phase faster and stay there longer, giving you a better shot at the synchronization needed to preserve and protect memory.

Raspberries are not only a delicious source of fiber, with 8 grams per cup, but they also contain a little sleep-inducing melatonin, too... so you sleep longer and wake up feeling better.