When my son encouraged me to run in his summer holiday in 2017, I thought he was over-ambitious and totally wrong. He really didn't understand what a 50-year-old-life should be.

My son came to my office every night to fetch me to home. There is 2000 meters from my office to my home. In the road, he pushed me to run. It was really hard to get started, the first step was impossible. But he pushed and pushed, using whatever he could use to inspire me to run. Under the great pressure, I got started, but I only could run 10 steps.

My son required me to run 100 steps, I thought it was impossible and wanted to give up. Then he tried to push me to run 10 steps 10 times in the 2000 meters from my office to home, or 20 steps 5 times......and finally I could run 100 steps a time.

Then he ordered me to run 10 times 100 steps......in the end of his summer holiday, I fulfilled his task and thought he was torturing me the whole holiday and feel released by his leaving home. I sweard that I would never run again.
8 months later in Australia, my son would have his eye-operation in ten minutes, and I was still walking in the way to the hospital. He sent me a message, saying, “mum, I am panic and hope you are with me and hug me so that I can feel the support”.

 I began to run with all my strength......and arrived the hospital just when he entered the operational room.  I hugged him tightly in my arm and felt his heart was beating his need of a strong mother. He asked the nurse, "Could  you please let my mom accompany me to the operational room?" The nurse said yes. But before the operation, he asked me to be out of his sight so that he could use his own strength to follow the doctor's demand, and in any emergent situation he could not handle, he still felt his mother are with him.
After that, I started to run again, within two and half years, I now can run a half marathon without a stop and improve my personal best again and again. You thought you are weaker as you become older, so you never overtook your personal best, but it is not true.

You try, and you will find any over-ambitious things will come true only if you are on the track.