Later times will be ... dips in your cortisol levels when you need a boost the most (see graphic by Iwata below.) Put this way, the traditional idea of a "coffee break" makes a lot of sense.

Coffee in the morning is a ritual for ... “That means if your bedtime is 10 p.m., you should consume caffeine no later than 2 p.m. — but if you’re someone who is strongly affected by ...

So, the coffee you drink later in the day, when you have more drowsy signals your system may feel more powerful. Caffeine can also raise levels of cortisol, a stress hormone that can make you feel ...

This is a story about coffee. It’s also about V.C. funding ... were created off of youthful ignorance that allows you to see what other can’t. RAPKIN: Is there something you’re glad you ...

So, the coffee you drink later in the day, when you have more drowsy signals your system may feel more powerful. Caffeine can also raise levels of cortisol, a stress hormone that can make you feel ...