For a person who runs 10 km every day, the distance of 5 km can only be regarded as a warm-up, which takes 25 minutes and 40 seconds and can be easily completed.

I still remember when I first started running, I sprinted five kilometers on the first day. I'm red in the face, sweating profusely, my heart is pounding, my legs are weak, and I feel like the whole person is going to be ruined. I woke up the next day with pain all over my body and didn't even want to move.

However, after I gritted my teeth for a month, five kilometers was relaxed. I gradually increased the distance, broke through six kilometers, challenged seven kilometers, and finally fell in love with running at the present ten kilometers.