Marnie Kunz
CPT
USATF- and RRCA-certified running coach
‘Fartlek’ May Be a Weird Name for a Run, But It’ll Make You Faster (While Having Fun)
Learn how Fartlek training, a form of speed workout, can help improve your endurance and form as a runner at any level.
7 Legit Benefits of Running At Night—And How To Do It Safely
Discover the advantages of night running—like enhanced sleep and quieter streets—plus tips to stay safe after dark.