What is the wall, and why do runners hit it?

If you’ve got a fall marathon on the calendar, follow these tips to avoid bonking during the race

Hitting the wall, by the numbers

The who, where, when and why on bonking near the end of a marathon

Become bonk-proof: How to avoid hitting the wall

You felt great at 30K, but now your legs feel heavy, your mind foggy and you feel like you’re falling apart. You may be “hitting the wall”