<p>Caffeine in excess cause anxiety, heart palpitations, and sleeping disturbances.</p>
<p>Up to 400mg of caffeine a day (two to four 8 ounce cups) can be part of a healthy diet, and over 600mg per day is too much.</p>

Enough caffeine

Of course, with anything caffeinated, moderation is key. When consumed in excess, caffeine can cause anxiety, heart palpitations, and sleeping problems.According to Consumer Reports, up to 400mg of caffeine per day (which equals two to four 8 ounce cups) can be part of a healthy diet, however anythi...

How to make your coffee habit benefit you

Enough caffeine

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