根据一项新的研究, 早上9点前喝咖啡可能会提高警觉性和新陈代谢. Drinking coffee before 9 a.m. may boost alertness and metabolism, according to a new study.

一项新研究于2026年3月22日发表,表明早上9点前喝咖啡可以提高警觉性和代谢健康,促使卫生专家建议坚持严格的9点断食以获得最佳益处. A new study published on March 22, 2026, suggests that drinking coffee before 9 a.m. may improve alertness and metabolic health, prompting health experts to recommend adhering to a strict 9 a.m. cutoff for optimal benefits. 根据1万多名参与者的数据, 研究发现那些在早上9点后摄入咖啡因的人睡眠模式受到干扰,胰岛素敏感性降低. The research, based on data from over 10,000 participants, found that those who consumed caffeine after 9 a.m. experienced disrupted sleep patterns and reduced insulin sensitivity. 专家警告说,个体反应可能有所不同, 但这些发现证实了咖啡因作用的关键因素是时间. Experts caution that individual responses may vary, but the findings reinforce timing as a key factor in caffeine’s effects.