Category: Cognitive performance

The human brain, despite making up only 2% of our body weight, consumes a significant 20% of our daily calories. Knowing what is the best food to eat the night before a big test can be the difference between feeling sharp and alert or sluggish and fatigued when it matters most.

According to a 2025 study, excessive consumption of sugary beverages can cause significant declines in memory and thinking skills, prompting many to question: is it bad to drink soda while studying? The truth is, while a quick boost of caffeine might seem helpful, the high sugar content and other ingredients can lead to a detrimental 'sugar crash' that impairs, rather than helps, your study session.

According to the FDA, most healthy adults can safely consume up to 400 mg of caffeine daily. Understanding what benefits does caffeine give can help you maximize its positive effects.

The brain, despite making up only 2% of your body weight, consumes about 20% of your daily energy, demanding a high-quality fuel source to function optimally. Knowing what's the best food to eat before an exam can directly impact this energy supply, helping you maintain sharp focus and clear thinking when it matters most.

Beta waves are the most common brainwave pattern during normal waking consciousness and are crucial for concentration and problem-solving. However, can diet affect beta brain waves and their stability? Scientific evidence shows that the food we consume directly influences the brain's electrical activity, impacting our cognitive states and mental performance.

According to a study involving over 8,500 children, frequent fast food consumption was negatively associated with academic performance in math, reading, and science. This research highlights why many people question, 'is fast food bad for studying?' as convenience food can significantly impact cognitive function and learning outcomes.

According to a meta-analysis of numerous studies, students who consistently eat breakfast on test day tend to perform better on exams than those who skip the morning meal. Proper nutrition and meal timing are essential for fueling the brain and maintaining energy levels, which can be the difference between a high score and a low one.

Approximately 20% of the body's total glucose supply is consumed by the brain to fuel its intricate processes, making glucose the brain's preferred energy source. This critical fact sets the stage for the common question: does sugar boost concentration, and what’s the difference between the brain's need for glucose and the effects of a sugar-laden treat?

Recent research from King's College London revealed that a daily intake of wild blueberries can lead to faster reaction times in healthy adults. This finding adds to a growing body of evidence supporting the cognitive benefits of this powerful fruit, which is rich in a specific type of flavonoid called anthocyanin.

According to numerous studies, caffeine can improve performance on tasks requiring sustained attention and increase alertness. This raises the question: does caffeine gum help you focus more effectively than other caffeine sources?