Due to its stimulatory effects, caffeine is one of the most frequently consumed mood and
behavior altering drugs. University students report using caffeine-containing products to …

Objective Based on our previous research, chronic paradoxical sleep deprivation (PSD) can
cause depression-like behaviors and microbial changes in gut microbiota. Coffee, as the …

Previous studies have found relationships between variables that predict happiness and
engagement. While this suggests that engagement is a basis for generating customer …

Caffeine has known effects on the central nervous and cardiovascular systems. An intake up
to 400 mg/day does not give rise to health concerns. Tea, a major source of caffeine, is …

Background Caffeine is most used psychoactive substance as a central nervous system
stimulant in the methylxanthine family. Purpose The objectives of this research paper was to …

Objective: Caffeine is one of the oldest natural substances consumed by people. Its
consumption in Poland has not been well described. The aim of this study was to design and …

Caffeine-related health incidents in New Zealand have escalated over the last two decades.
In order to reduce the risk of substance-related harm, it is important to understand the …

Caffeine is one of the most used psychoactive substances worldwide, with an impact in
multiple spheres (individual, social, and economic). In addition, there is evidence of the …

Introduction: Caffeine is the most consumed psychoactive drug worldwide. Nowadays, the
introduction of many caffeine-containing products, along with changes in the consumption …

We aimed to evaluate the association between caffeine intake and sleep time in Brazilian
adults. This cross-sectional study was conducted with 6,356 participants from the Cohort of …