I know that (over-)consumption of coffee leads to stress hormones being released with possible side effects of anxiety, depression, fatigue, irritability, mood swings, and sleep disturbance.
But I don’t want to give up my daily cup of robot juice.
– Letters to a Young Poet by Rainer Maria Rilke. The Eighth Letter. Written in Borgeby Castle, Flädie, Sweden on 12 August, 1904.