Sisu starts where regular perseverance ends. Emilia Lahti, a researcher of sisu, pushes herself to her limits by running 2,400 kilometres across New Zealand alone. What is sisu, really?
Sisu starts where regular perseverance ends. Emilia Lahti, a researcher of sisu, pushes herself to her limits by running 2,400 kilometres across New Zealand alone. What is sisu, really?