Working at such a rhythm helped me learn much. It also durably damaged my body (both because it chipped away at my health and because it made me forego health check-up), my mental health, and made me lose personal connections. To this day, I'm still picking up the pieces.
Human beings are also "designed" to survive long period of hunger if need be, but no one would argue that going without for a week is a fine and healthy way to lose weight.
