Caffeine & Methylxanthines

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Caffeine and other methylxanthines connect natural substances, everyday rituals and measurable physiological activity. Familiarity does not remove the need to understand dose, variation and context.

Questions we explore

Our enquiry includes caffeine, theobromine and theophylline, with sources such as coffee, tea, cacao and guarana. We investigate pharmacology, metabolism, tolerance, stimulation, exposure and differing responses.

Emerging possibilities

These substances also demonstrate how cultural practices and product forms shape consumption. Research should separate a substance’s biological activity from marketing narratives and individual experiences.