This episode explores China's booming contact lens market and the debate around the optimal time to drink coffee. The discussion begins with an overview of the contact lens market, highlighting its expected growth to $2.7 billion by 2025, driven significantly by the popularity of colored lenses among Gen Z. Against the backdrop of this growth, the hosts discuss the shift towards online platforms like Taobao and Douyin for purchasing lenses, which now account for 80% of the market. The panel then dives into the different types of contact lenses, including soft and rigid gas permeable options, and the demographic trends of users, noting that the majority are women aged 18-24 from high-tier cities. As the discussion pivots to coffee consumption, the panel debates the best time to drink coffee, considering its effects on blood sugar, hormones, and sleep patterns. The episode concludes by acknowledging the lack of definitive scientific evidence on the best time to drink coffee, while advising listeners to consider their personal sensitivity to caffeine and potential impacts on sleep.