I did 10 hill sprints the other day & it made me feel sick, sprinting is so much harder than jogging

i just sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill
sprinted up hill walked down hill