The 2-minute caffeine crash course

ADHD Assist
2 min readDec 29, 2022

Caffeine is a brain stimulant found in various beverages, such as coffee, tea, and soda, as well as in some medications and supplements.

When consumed, caffeine is absorbed into the bloodstream and travels to the brain, which affects several neurotransmitter systems.

One of the main effects of caffeine on the brain is to block the action of adenosine, a neurotransmitter that promotes sleep and relaxation. By blocking the action of adenosine, caffeine can increase alertness, attention, and energy.

In addition to its effects on adenosine, caffeine also affects other neurotransmitter systems, such as dopamine and norepinephrine, which are involved in mood and cognitive function.

As a result, caffeine can improve cognitive performance and mood, and may also help to reduce fatigue and enhance physical performance.

However, caffeine can also negatively affect the brain, especially when consumed in large amounts or too close to bedtime.

Caffeine can interfere with sleep, leading to difficulty falling asleep or staying asleep. It can also cause jitters, anxiety, and irritability in some people.

For healthy adults, up to 400 mg/day is considered safe. Pregnant or breastfeeding women are advised to consume no more than 200 mg/day.

Overall, the impact of caffeine on the brain depends on the individual and the amount consumed. It is generally safe to consume moderate amounts of caffeine, but it is important to be mindful of one’s own tolerance and to consume it in moderation.

All the love.

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ADHD Assist

160K+ followers on TikTok @adhd_assist. Talking shop about ADHD and natural solutions that can help improve our lives.