Final answer:
Climate is not a lifestyle factor that affects the skin, while diet, sleep, and hormones do have an impact.
Step-by-step explanation:
The lifestyle factor that is NOT known to affect the skin is climate.
Climate refers to the weather conditions in a particular region, and while it can have an impact on overall health, it is not directly linked to skin health. The other lifestyle factors listed in the question, such as diet, sleep, and hormones, can all influence the condition of the skin.