L-Theanine and the mystery of tea
Tea, the beverage made from Camellia sinensis, has been drunk for its beneficial effects for millennia. Legend has it that the Chinese emperor and herbalist Shennong discovered tea in 2737 BC. Shenong was famous for his wise edicts, and one such edict required that people boil their water before drinking it. This process lead, indirectly to the infusion of Camellia leaves to make the first tea.