Life stages according to traditional Chinese medicine and when you hit your physical peak

The major female milestones mapped by the seven-year cycle – first menstrual period at 14, peak fertility at 28, menopause at 49 – are all directly tied to changes in blood and the yin-based reproductive essence called tian gui.

Men’s rhythms unfold slightly slower, every eight years, and are governed more by qi – the active, warming, moving energy that supports muscle function and physical drive. This is a yang quality, because yang represents function, heat and dynamic activity.

The milestones for men are therefore tied to yang and structural strength: a growth spurt in bones and tendons at 16, peak physical power at 32, and a gradual decline in bone density and yang energy after 40.

“Women mature earlier. We see it in puberty, and we see it in these cycles,” Hong Kong TCM practitioner Kelly Chan Sin-yiu says. “Men’s bodies develop at a slower rate, peaking later and declining more gradually.”