The International Journal of Environmental Research recently published a study revealing a nuanced understanding of caffeine’s effects on our brain and attention, particularly during periods of sleep deprivation. Researchers discovered that while a single dose of caffeine can improve attention in sleep-deprived individuals, regular high consumption of caffeine leads to diminished attentional performance, as well as alterations in brain activity. Caffeine, the most widely consumed psychoactive substance in the world, is known for its ability to ward off sleepiness and improve focus — especially…
