21 Best Quotes About Coffee

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Are you a roll-out-of-bed, shuffle-to-the-coffee-pot kind of caffeiner? You might be trying to get your coffee boost too soon. According to a small studycortisol helps keep you alert and focused, and regulates your metabolism, immune system response, and even blood pressure. Every morning, your cortisol levels naturally rise and peak about 30 minutes after waking up. The caffeine in coffee may increase cortisol levels. Elevated levels of cortisol over long periods may impair your immune system. A small study suggested that you can actually develop a tolerance to this caffeine-induced cortisol spike. The best time to drink coffee is likely mid-to-late morning, when your cortisol levels have dipped back down. If you wake up at a.