Guayaki Sustainable Rainforest Products, Inc.

This study looks at how caffeinated drinks affect how people feel and their body's responses. It involves 150 healthy adults who already drink caffeine regularly. Participants will try different caffeinated beverages and report their feelings using simple rating scales, while als…

This study looks at how different caffeinated drinks change your mood and body functions. Researchers will ask 75 healthy adults who already drink caffeine to try a test beverage and rate their feelings. The goal is to understand the effects of various caffeine drinks, not to tre…