Category: Cognitive performance

While most people consider chewing gum a simple habit, research shows it may offer some surprising cognitive and physiological benefits. But does chewing gum improve anything, or are the perceived effects just a placebo? This deep dive separates the myth from the proven science behind this popular pastime.

According to the CDC, being awake for a continuous 24 hours can produce cognitive impairment equivalent to a blood-alcohol concentration of 0.10%, a level above the legal limit for driving. The question of how many hours awake until you feel drunk isn't just a curiosity—it highlights a serious public health risk with parallels to alcohol intoxication.

Even mild dehydration can significantly impair your concentration and memory, according to research. When considering what is the best drink to drink before a test, the focus should be on fueling your brain efficiently for peak performance, not just seeking a temporary energy spike.

According to the FDA, up to 400 milligrams of caffeine daily is generally safe for healthy adults, but what about its acute effects on exam performance? Does caffeine help you perform better on tests, or is it a crutch that can backfire under pressure?