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LESSON 5 · Skin Science

Lifestyle That Ages You

The best products cannot win if your daily habits fight them. Sleep, diet, hydration, and stress all shape how fast your skin ages. Seven to nine hours of sleep gives skin time to repair overnight.

Sugar, alcohol, and smoking speed skin aging more than almost anything else you control. Glycation from excess sugar stiffens and damages collagen fibers. Alcohol dehydrates skin and blocks nutrient absorption. Smoking starves skin of blood flow, dulling and thinning it over time.