These distinct features are typically attributed to the tea’s unique production process. Because of its naturally high caffeine content ... much more than it does animal sources.
suggesting that theanine can reduce the negative effects of caffeine on sleep quality. The findings of these studies suggest that green tea may have beneficial effects on cognition and sleep ...
So this has us wondering, does an espresso shot or a simple brewed cup of joe contain more of a caffeine hit? Here are a few tips for decoding caffeine content, which can mean the difference ...
And some rely on caffeine's effects to feel mentally agile throughout the day. But how does it work ... caffeine consumption appears to have little effect on regular users compared to non-users ...