Viparita Karani yoga pose - Legs up the wall - Encourages circulation of blood and lymph from the feet and legs. Bathes the abdomen in fresh blood, stimulating the digestive organs. Soothes the nervous system, allowing your body to shift its attention from warding off stress to daily bodily functions, including detox. Note the pillow/bolster she is using.
Antioxidants in green tea could help increase metabolic rate and lean body mass. While green tea is a healthy beverage on its own, the antioxidants get partially degraded in the body, so you lose some of those benefits when the tea is weakened in this process.