How long should I run for? This seemingly simple inquiry opens a plethora of intriguing considerations for both novice runners and seasoned athletes alike. What factors should I take into account when determining the optimal duration of my runs? Am I striving to build endurance, improve cardiovascular health, or perhaps prepare for an impending race? Should the terrain or environmental conditions influence my decision? Moreover, how can I ascertain the right balance between pushing my limits and preventing injury? Is there a universally accepted guideline for beginners, or does individual variation play a significant role in shaping the ideal running regimen? As I ponder these questions, I can’t help but wonder: How do experienced runners gauge their performance and adjust their running time accordingly? Ultimately, could the answer to this query hold the key to unlocking a more rewarding and sustainable running practice? What insights might I discover along this exploratory journey?