Category: Sleep science

According to a 2016 study, a higher intake of saturated fat was linked to lighter, less restorative sleep. This suggests that what you eat, particularly fatty foods, can have a direct impact on your nightly rest. Understanding the relationship between dietary fat and sleep is key to optimizing your health.

According to a 2024 study in *BMJ Open*, higher energy drink consumption is linked to poor sleep quality and insomnia among college students. This suggests that virtually any energy drink with a significant stimulant load can prevent sleep, though their effectiveness varies based on ingredients and individual sensitivity.

According to the Sleep Foundation, nearly 90% of US adults consume caffeine daily, but its effects vary dramatically among individuals. If you're one of the many who wonders "why am I not sleepy after caffeine?", the answer likely involves a complex interplay of your body's natural chemistry and long-term habits.

According to the FDA, up to 400mg of caffeine per day is considered safe for most healthy adults, and many rely on their daily coffee intake to feel more alert. While coffee offers a well-known energy boost, the reality of its effect on fatigue is more complex than a simple solution. This article explores the science behind coffee's stimulating effects, how it truly impacts feelings of tiredness, and what you should know about caffeine dependence and sleep quality.

Approximately 85% of Americans consume caffeine daily, and many wonder: will coffee actually keep me up? This depends on several factors, including the timing of consumption and personal metabolism. Caffeine, a central nervous system stimulant, directly interferes with the body's natural sleep-regulating chemicals, potentially causing significant sleep disruption.

Studies have shown that consuming a moderate dose of caffeine even six hours before bed can significantly disrupt sleep, reducing total sleep time by over an hour. Having an energy drink at 7pm, which typically contains a high dose of stimulants, can have a profound negative impact on your sleep cycle and overall health.

According to a 2024 study using UK Biobank data, higher dietary vitamin C intake is linked to a reduced risk of sleep disorders like sleep apnea. However, the complex relationship between vitamin C and sleep isn't always straightforward, and understanding its effects—both positive and negative—is key to optimizing your nightly rest.

Studies suggest that eating less than one hour before bed is associated with increased wakefulness after initially falling asleep, indicating disrupted rest. This disruption is just one of several negative health consequences tied to late-night eating habits, from metabolic shifts to digestive discomfort.

According to the National Sleep Foundation, consuming stimulants like caffeine before bed can disrupt sleep patterns. So, is chocolate bad for you at bedtime, or is this a myth? The answer is nuanced, depending on the type and amount of chocolate consumed.

For healthy adults, 400 mg is the FDA-recommended daily limit, but consuming this amount, especially close to bedtime, can severely disrupt sleep. Will 400 mg of caffeine keep me awake? The answer largely depends on your individual sensitivity and the timing of consumption.