New research reveals that a seemingly harmless evening ritual may be messing with your brain long after you’ve fallen asleep.

According to new research, having an afternoon cup of coffee might seem harmless—but caffeine continues to affect the body, ...

Caffeine can make it difficult to fall asleep, but new research suggests it continues to affect your brain long after you’ve ...

Coffee doesn't actually wake you up - caffeine blocks sleepy signals while adenosine accumulates, creating brutal afternoon ...

What you eat during the day can affect how well you sleep at night. Sleep researchers explain the impact of diet, caffeine and alcohol on sleep health, and share a list of sleep-supporting foods.

We already know that the stimulating powers of caffeine make it an unsuitable choice for a late-night drink – at least if you ...

3 Once the caffeine wears off, it’s possible that all that built-up adenosine that was blocked comes flooding back at once, says William Lu, MD, a sleep medicine physician and medical director ...

He said: "Caffeine blocks adenosine, which is essentially the brain's sleep-promoting chemical. As we go about our day, we naturally accumulate more and more of this in our bodies, which helps us ...

It may come as no surprise that hormonal upheaval – say, during puberty or menopause – can play havoc with sleep. But our hormones influence sleep all the time, not just during big changes.

Have one or two 8-ounce servings of caffeinated coffee or tea to slow down your sleep drive. Now that morning cortisol and adrenaline have faded, you can use the adenosine blocker in caffeine to ...

“But it can be an issue if you sleep too long during the day because adenosine, which works at a cellular level in our bodies to regulate our sleep-wake cycle, can be used up during day ...