The results of this study suggest that 400 mg of caffeine taken 0, 3, or even 6 hours prior to bedtime significantly disrupts sleep. Even at 6 hours, caffeine ...

17 апр. 2024 г. · Caffeine use can exacerbate sleep deprivation, and sleep loss causes sleepiness the next day, which in turn causes an increased need to consume ...

12 мар. 2019 г. · Research shows that doses of 100mg around bedtime reduce the ability to fall asleep and stay asleep. But if you have less than that – for ...

7 июл. 2023 г. · “Research on the exact timing caffeine's impact on sleep is limited, but there is one small study showing that having caffeine as early as six ...

6 окт. 2022 г. · One study found that consuming caffeine 6 hours before bedtime reduced total sleep time by 1 hour. These effects also can be stronger in older ...

6 февр. 2023 г. · The consumption of caffeine in response to insufficient sleep may impair the onset and maintenance of subsequent sleep.

Specifically, caffeine consumption reduced total sleep time by 45 min, increased sleep onset latency by 9 min, and increased wake after sleep onset by 12 min.

25 февр. 2021 г. · Acute caffeine intake can delay sleep initiation and reduce sleep intensity, particularly when consumed in the evening.

29 сент. 2023 г. · A study published in June 2023 found caffeine consumption reduces a person's total sleep time by 45 minutes and sleep efficiency by 7%. Research ...