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Albert Blibo's avatar

I’m not a fan of caffeine, but this helps a lot—my caffeine addicted friends can learn everything I’ve learned here.

Thank you for sharing.

Robyn Everingham's avatar

Interesting. I only drink coffee mid morning, but I drink tea. I wonder what the research says there.

Dr. Bronce Rice's avatar

This is interesting + 2 of my favorite authors teaming up. Super power the science! :)

I have found for myself, a bit of caffeine in the morning can "fight" depressive aspects of mood but only slightly. I have to pair it with exercise + sunlight for the full benefit of the three together. My understanding is the caffeine blocks adenosine which can help with alertness and focus. But I have also found I need to cut my caffeine consumption out about 10 hours before bedtime. How many people stick to this regiman. It's something I still have to watch.

I do drink espresso so if I push the time restraints I try to have some green or even white tea. In the dead of winter, sometime I just want something warm to drink. A home brew of steaped fresh cut ginger and lemon will do the trick without the caffeine. Energizing as well.

Kat Fu, M.S., M.S.'s avatar

Thanks Bronce. I totally get the feeling of just wanting something warm and cozy to drink, and I think the lemon in tea is a great idea.

For me, I love ginger tea for this in the winter, and in summer its also equally nice with some ice in it.

Cara Bradley's avatar

Love the depth of this post. I drink mostly decaf as well.

The Divergent Shelf's avatar

I really enjoyed this post! Thank you for sharing 🙏 I particularly liked the section on the half-life of caffeine and how crucial that timing is—it’s a detail many people overlook when they’re struggling with sleep quality.

As a pharmacist, I’m always fascinated by how our brains adapt to our daily cup. Regular drinkers eventually develop a tolerance through receptor up-regulation. Essentially, caffeine is a 'molecular imposter' that plugs your adenosine (sleepiness) receptors. To restore balance, your brain simply grows more receptors, meaning you eventually need a higher dose just to feel 'normal.' 🧠☕

Heather Hausenblas, PhD's avatar

So interesting the molecular imposter analogy. Clear way to explain it, And it makes sense why cutting caffeine cold turkey feels brutal; all those receptors suddenly have nothing blocking them. Neurochemistry hiding behind an everyday habit. Appreciate the pharmacist's perspective.

Maryann Jacobsen's avatar

Thanks for this. I am sensitive to caffeine but my husband is not. Nothing after 10am for me!