Not all teas will keep you awake! A recent study found that L-theanine, another component of green tea, can neutralize the sleep disturbances caused by caffeine.
L-theanine has a stabilizing effect on the nerves and reduces brain over-excitement, which helps to relax and maintain deep sleep. If you need to be awake during the day and want to sleep well at night, green tea or beverages that contain theanine may be a milder option than coffee.
