❓ why
Why do coffee drinkers feel more awake?
Human bodyNutrition
Quick Answer
Coffee makes people feel more alert because caffeine blocks adenosine, a brain chemical that promotes sleepiness. Its effects usually begin within 15 to 45 minutes.
The Full Story
Caffeine is a stimulant that works mainly by blocking adenosine receptors in the brain. Adenosine normally accumulates during the day and contributes to the feeling of sleep pressure, so blocking it makes people feel more awake. Caffeine can also increase the release of neurotransmitters such as dopamine and norepinephrine. The alerting effect often starts within 15 to 45 minutes and can last for several hours, depending on the person and dose.
Key Facts
1.Caffeine blocks adenosine receptors
2.Effects often begin within 15–45 minutes
3.Caffeine can stay active for several hours
YouTube Angle
Suggested video title for this topic:
"Why one cup of coffee can change your whole brain state"