General education in natural sciences is a critical component in higher education. In this article, I introduced the exploration and practice of curriculum construction of “Biological Clock and Health” at Tsinghua University. The course has been open to students for 3 semesters so far. Students who selected the course come from 27 departments of the university. The students provided positive feedbacks after taking this class, including self-report of improved sleep quality and better understanding of the research logic and methods in life sciences. The logic and methods of the construction of “Biological Clock and Health” described in this article provide insights to the construction of other courses in natural sciences of general education.