A new report in CNN claims there's one simple key to making your coffee that will lead to greater longevity.

The American Heart Association and the British Medical Journal agree: coffee has some real benefits to your health. But, you've got to brew it the right way to get those results. A new 20-year-long study from Sweden found that coffee is good for your health and can even help you live longer, but only if you brew it with a filter.

If you deploy a French press, or drink unfiltered coffee, it leaves chemical residues that can raise your triglyceride levels and elevate your bad cholesterol.

The research from Sweden showed that filtered coffee is linked to a 12%-20% lower risk of death from heart disease.

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