Thanks a lot!

thanks very much! Imagine you must look after yourself quite well as you know so much about 中医养身. You must have a roughly fixed timetable to sleep. Feel surprised to get reply from you for I recon it should be bedtime for people in USA.
Further question: 1)if the pain of the knees has sth to do with auto-immune, should he carry on riding bike or not? 2)how to improve?