Caffeine is a softer stimulant in coffee.
Last updated 2026-09-29 — Caffeine is a softer stimulant in coffee, which can improve the sensitivity, attention, metabolism, mental state and physical fitness of the human body. Usually a cup of coffee with 60-65mg caffeine. But excessive caffeine intake is prone to tinnitus and myocardial hyperactivity (the heart beats rapidly and the number of pulses increases). And the pulse beats unevenly, so must
Caffeine is a mild stimulant in coffee, which can improve the sensitivity, attention, accelerate the metabolism of the human body, and improve the mental state and physical fitness of the human body. A cup of coffee usually contains 60-65mg of caffeine. However, excessive intake of caffeine, prone to tinnitus myocardial hyperactivity (rapid heartbeat, increased pulse rate). And pulse beat uneven, so you must drink moderate coffee.
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