The article explores how human bodies adapt to different climates. There are four main types of constitution based on climate: warm-humid, warm-arid, cold-arid, and cold-humid. These can change due to living in different climates or inheriting traits. By combining these types, there are eight possible constitutions. The study found that people with different constitutions have different finger characteristics, with men having longer, slimmer, and cooler fingers than women.