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"I want to die." That was the thought I had as I looked up a staggering hill on my third ever run. I had just run for 15 minutes around my local block when I met this behemoth of a hill. The hill looked like Kilimanjaro or Everest; I would need a whole team to carry me up it. However, slowly, I put one foot in front of the other. Every part of my body was telling me to stop. My heart was beating too fast, my lungs were on fire, and my legs were reminding me how I always skip leg day.

Three days earlier, I had begun my 30day running challenge. Little did I know I would be doing it two years later.

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0:00 The Struggle
4:22 The Change
6:29 The Habit
8:48 The Transformation

Editor: Martino Gasparrini
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Who am I:

My name is Zach. I’m a fourthyear medical student in Philadelphia. I make videos about medical school, studying, and growth. I love trying new things and often mess up. However, every time I screw up I usually learn something. Whatever I learn I post it either on YouTube or on my website (https://zhighley.com/​​).

I write a weekly newsletter (https://zhighley.com/newsletter/​​) linking the best things I read, watched, and listened to that week. Join the 4,000+ that read it every Sunday morning.

The Gear I Use to film videos: https://zhighley.com/resources/#_YouT…​​

What I’m Reading: https://zhighley.com/resources/#_Books