Source is my personal doctor told me to cut back cause it was bad for me.
But also from personal experience, when I drink a lot of cups per day for several days, my shall remain nameless parts start feeling odd. Doesn't really start till you're in your 30s and later though.
But also from personal experience, when I drink a lot of cups per day for several days, my shall remain nameless parts start feeling odd. Doesn't really start till you're in your 30s and later though.