Hardness varies but it's always proportional. Doesn't matter if it's a 10-min extra walk or 3000-calorie burned full day of snowboarding. If I'm relatively perf

Hardness varies but it's always proportional. Doesn't matter if it's a 10-min extra walk or 3000-calorie burned full day of snowboarding. If I'm relatively performing more physical activity, I feel better, proportional to the amount of extra activity.