Coffee: Can It Help Prevent Prostate Cancer?

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Plus, there are downsides if you have too much coffee. More than 4 cups a day might give you:

Headaches

Irregular heartbeat

Insomnia

Irritability

Keep in mind that a cup is 8 ounces. Most coffeehouses give you much more than that, as do those giant mugs you might have at home.

Some people may be more sensitive to caffeine, too. Pay attention to continue reading …