# Wake up and smell the coffee: caffeine supplementation and exercise performance — an umbrella review of 21 published meta-analyses

Grgic J, Grgic I, Pickering C, Schoenfeld BJ, Bishop DJ, Pedisic Z · British Journal of Sports Medicine 54(11):681–688 · 2020



## 核心发现

咖啡因对耐力、力量和爆发力都有增益 —— 所以杠杆是时机，而不是戒断。



[阅读原文](https://pubmed.ncbi.nlm.nih.gov/?term=Wake+up+and+smell+the+coffee:+caffeine+supplementation+and+exercise+performance+—+an+umbrella+review+of+21+published+meta-analyses)

---
这是对已发表研究的科普性总结，不构成医疗建议。筛查得分不是诊断。若得分偏高或身体不适，请咨询医生。

SleepShred for iPhone: https://apps.apple.com/app/id6802040541
