Back away from the cold brew.  TikTok users are trading in their iced lattes for a new go-to drink to start the day, claiming a simple water hack has smoothed their digestion and even trimmed their waistlines. The no-frills habit is part of the broader “Chinamaxxing” trend that has taken over the app in recent months, driven by Chinese American influencers spotlighting wellness practices rooted in East Asian culture that shape their daily routines. “To all the Chinese baddies who said to drink