caffeine

“What you don't realize is that caffeine can actually decrease the amount of deep sleep that you're getting, stages three and four. And in fact, what we found is that even just one to two cups of coffee in the early or late evening can decrease the amount of yo…”

“The reason that coffee provides those health benefits is not because of the caffeine. It's because the coffee bean provides, for most people, because our diets are not really very good, the standard American diet, for example isn't ideal in its nutritional pro…”

“If you've had a bad night of sleep, here is my following best advice. Do nothing. And what I mean by that is after a bad night of sleep, firstly, don't try to sleep it off by waking up any later than is natural. Don't sort of say, I'm going to then sleep in fo…”

“Caffeine has a half-life of probably around five to six hours. In other words, after five to six hours, 50% of that caffeine is still in your system, half of that caffeine, hence half-life. Which means that after two 10 to 12 hours, there's about a quarter of …”

“They say within a couple of minutes, you know, five minutes later, oh gosh, you know, I feel so much better. All right. I'm ready to face the world. And you think that that's the caffeine. That's nonsense. The caffeine isn't probably, you know, working within …”

“Many people find that they can drink caffeine until eight or nine PM and then still fall asleep, but the quality of your sleep will be greatly disrupted.”

“So if you keep caffeine out of your system for the first 90 to 120 minutes of waking and then have your caffeine, you'll notice that you'll push through the afternoon just fine without any afternoon drop.”

“So the half-life of caffeine, it's not a half-life of the caffeine molecule itself. It's a half-life of our ability, our enzymes ability to break it down, and that varies from person to person.”