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Meal timing: Thanksgiving is usually served around 3 p.m., when our internal body clock causes a natural dip in alertness. Late afternoon, our sleep drive is increasing but our alerting signal ...
Another substance in tea, caffeine, pairs up with L-theanine to provide a boost to attention and alertness. One small study in boys with ADHD found that the combination of caffeine and L-theanine ...
• Fermented foods: These foods, which include Greek yogurt, Icelandic skyr, kimchi and sauerkraut, contain the bacterium Lactobacillus, which helps decrease stress and anxiety levels.
Postprandial somnolence (colloquially known as food coma, after-dinner dip, or "the itis") is a normal state of drowsiness or lassitude following a meal. Postprandial somnolence has two components: a general state of low energy related to activation of the parasympathetic nervous system in response to mass in the gastrointestinal tract , and a ...
The fruits are rough, mottled and up to 8 inches (20 cm) long and contain large, flat and bright red coloured seeds, commonly known as kola nuts. [2] The seed contains 1.25 - 2.4% caffeine, and can be chewed or ground into a powder added to beverages to increase alertness, diminish fatigue, and increase stamina. [1]
Caffeine – a meta-analysis found an increase in alertness and attentional performance. [26] [24] Eugeroics (armodafinil and modafinil) – are classified as "wakefulness-promoting agents"; modafinil may increase alertness, particularly in sleep-deprived individuals, and may improve reasoning and problem solving in non-ADHD youth. [23]
According to the U.S. Food & Drug Administration, one eight-ounce cup of green tea contains around 30 to 50 milligrams of caffeine, compared to 80 to 100 milligrams in an eight-ounce cup of coffee ...
A 2018 study found a connection between increased learning performance and chewing gum, while a 2015 study linked chewing gum with higher productivity and alertness.