#reaction time

1 article

A wide, editorial-style still life photographed from slightly above on a pale oat-colored linen surface, lit by soft morning window light from the left. In the center sits a small matte ceramic bowl holding a mound of fine white powder, with a minimalist wooden scoop resting beside it. Next to the bowl is an open amber glass supplement jar with a plain cream label, and a few white capsules spill across the linen in a loose arc.

To the right, a neatly arranged cluster of analog "study" objects suggests careful measurement: a vintage stopwatch with a clean white face, a slim notebook with a sage-green cover open to a hand-drawn bar chart (blurred, no legible text), and a mechanical pencil lying across the page. A small row of six identical ceramic dishes, each holding a pinch of powder, is lined up along the top edge of the frame to hint at the six-week trial. One dish is slightly out of alignment, a subtle visual cue for ambiguity.

A shallow glass of water and a single sprig of green eucalyptus add a calm, organic note in the foreground. Soft, long shadows fall across the textured linen, and the palette stays restrained: warm cream, soft sage, muted terracotta, pale gray, and touches of amber from the glass jar. A few translucent paper cutouts in two tones (sage and blush) overlap in the upper right corner as a modern graphic accent, evoking overlapping data points without showing any numbers.

Depth of field is shallow, with the bowl and stopwatch in crisp focus and the edges gently softened. The composition leaves generous negative space on the left third for title text overlay. The overall mood is thoughtful, balanced, and quietly skeptical, in the style of a contemporary wellness and science magazine: clean, tactile, minimal, with a subtle film-like grain and natural color grading. No people, no futuristic or sci-fi elements, no readable text or logos.

GAA, 뇌 강화제? 6주 실험 결과는 복합적이다

BY DR. GYMBRO · 2026년 10월 30일

GAA는 뇌를 강화한다는 주장이 붙은 크레아틴 전구체이다. 이번에 처음으로 본격적인 인간 시험을 마쳤다. 58명의 건강한 성인을 대상으로 6주간 진행된 이중 맹검 시험에서 반응 속도가 약간 빨라졌고, 기분·스트레스 지표에서도 미세한 변화가 나타났다. 하지만 대부분의 인지 테스트에서는 차이가 없었으며, 유의미한 결과는 통계적 경향 수준에 머물렀다. 안전성은 확인됐지만, 연구 규모가 작고 탐색적이며 크레아틴만을 비교한 군이 없었다. 이번 연구가 보여주는 내용과 한계, 그리고 결론이 엇갈리는 이유를 살펴본다.