Zizyphus spinosa - Also known as sour chinese date seed, zizyphus is a Traditional Chinese herbal remedy. It is also known as jujube and chinese date seed, and eaten as such is quite delicious. Zizyphus is mildly sedative and is used to help ease anxiety and sleeplessness. It also helps relieve palpitations and excessive sweating. Zizyphus is good for relieving all sorts of symptoms of anxiety. Including insomnia, apprehension, nervous exhaustion, palpitations, clamminess, nerve excess, night sweats and hot spells, irritability.