What is the primary mechanism by which guarana promotes alertness and reduces fatigue?
Answer
Blocking the receptors for adenosine.
Guarana's stimulant action is primarily due to its caffeine content, which acts by blocking the receptors for adenosine, a neurotransmitter associated with promoting sleepiness.
Related Questions
What is the approximate maximum concentration of caffeine found in guarana seeds by dry weight?What is the primary mechanism by which guarana promotes alertness and reduces fatigue?Which components in guarana seeds are theorized to regulate the speed at which caffeine enters the system?What percentage of the annual guarana harvest is diverted primarily to the energy drink and soda beverage sector?According to animal research, what tissue type does guarana supplementation appear to promote the expansion of to aid in weight management?Which family does the climbing vine *Paullinia cupana* belong to?What is a major challenge researchers face when studying the cognitive benefits of guarana?Which of these other methylxanthines, besides caffeine, is naturally contained in guarana seeds?Which known adverse reaction is explicitly linked to guarana's high caffeine content in high doses?What drug interaction risk is suggested regarding guarana's potential enzyme interactions?What FDA guideline suggests the maximum daily caffeine intake healthy adults should aim for from all sources combined?