On July 15, 2021, Dr. Qi Liu reported his research about aging on the international conference “Quantitative Biology 2021: Aging and Rejuvenation”. On the oral presentation, he gave the talk “Rejuvenating chronologically aged quiescent fission yeast cells by niche refreshment”. He also reported his newest discovery about the simple linear quantitative law between two complex processes starvation and recovery in quiescent fission yeast by poster. Both of the reports attracted extensive interests and discussion. At last he was award the Excellent Post Prize.