Like any loan, there's an interest to be paid. Every surge of alertness you feel after caffeine has borrowed from your body’s bank of energy, needs to be repaid as well. By stimulating the adrenal system, caffeine prompts the release of stress hormones like cortisol[3]. Over time, excessive caffeine consumption can strain the adrenals, leading to symptoms like fatigue and irritability, which coffee lovers might recognize as a "caffeine crash."
Like any loan, there's an interest to be paid. Every surge of alertness you feel after caffeine has borrowed from your body’s bank of energy, needs to be repaid as well. By stimulating the adrenal system, caffeine prompts the release of stress hormones like cortisol[3]. Over time, excessive caffeine consumption can strain the adrenals, leading to symptoms like fatigue and irritability, which coffee lovers might recognize as a "caffeine crash."
