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Still Tired After 8 Hours Sleep? Coffee Might Be Sabotaging Your Rest!
M
Moneycontrol•29-09-2026, 07:31
Still Tired After 8 Hours Sleep? Coffee Might Be Sabotaging Your Rest!
- •A new review from Wroclaw Medical University suggests coffee can reduce slow-wave activity, impacting deep, restorative sleep without necessarily keeping you awake.
- •You might fall asleep normally and sleep for eight hours, but caffeine can subtly alter brain activity, leading to less effective deep sleep.
- •Deep sleep is crucial for physical recovery, energy restoration, and healthy brain function; reduced activity means less restorative sleep.
- •The effects of caffeine vary by individual, depending on dose, timing, age, metabolism, stress, and sensitivity, making personal patterns important.
- •Caffeine can create a cycle: tiredness leads to more coffee, which can contribute to poorer nighttime recovery, leading to more tiredness.
Key Questions Answered
Caffeine can reduce slow-wave activity, which is linked to deep sleep, without necessarily keeping you awake or preventing you from sleeping for a full eight hours. This means your sleep can be less restorative even if you do not notice any major disturbances.
Slow-wave activity is a major component of deep sleep that is essential for physical recovery, energy restoration, and healthy brain function.
Yes, for some people, caffeine consumed earlier in the day or in the afternoon can still affect sleep at night, as individual metabolisms and sensitivities to caffeine vary considerably.
