Caffeine doesn’t provide real energy; it only blocks the brain’s fatigue receptors, creating a temporary sense of alertness while the underlying exhaustion continues to accumulate. Individual responses vary: some metabolize caffeine quickly and tolerate it well, while others experience anxiety and elevated blood pressure.Energy drinks function similarly, with caffeine masking tiredness and sugar or taurine producing brief surges that the body interprets as energy, followed by steep crashes in strength and alertness.
