Ziziphus spinosa. Z. sativa, Z. vulgaris 酸 枣 仁  Suān zǎo rén  Wild jujube seed   Family: Rhamnaceae    
酸 枣 仁 Suān zǎo rén  Raw seed- Collected in the end of autumn when seeds are ripe.  
Nature: Neutral   FLAVOR: Sweet, sour.   CHANNEL: Heart, Liver, Gall bladder
FUNCTIONS
GROUP: Sedative and Tranquillizers- Mild
1. Nourish the Heart. Calm down spirit. Calms nerves, soothes.[1]
2. Stop sweating.
3. Benefit the Liver.
INDICATIONS
1. Heart and Liver Blood deficiency manifesting as vexation. Insomnia. Severe palpitation. Many dreams.
2. General Empty conditions with spontaneous perspiration, and night sweating. Shock, mental depression,  forgetfulness, deficiency perspiration.
3. Nervous exhaustion and insomnia.[1] Apprehension and forgetfulness.[1] Dizziness, clamminess.[1] Neurasthenia.
4. Liver deficiency with Heat.
5. Yin deficiency with hyperactive Yang.
PATENT COMBINATIONS
PREPARATIONS: Decoction- dry ripe seed 8-15 g.[2] Powder l.5-3 g.[5]
6-12 g.[1] 9-15 g.[2]
酸枣仁  Suān zǎo rén- 煸炒 Biān chǎo- Stir fried   
Nature- slightly warm
INDICATIONS
1. Palpitations.[4]
2. Reduced eating.[4]
3. Profuse sweating.[4]
NOTES: Research suggests that slight stir-frying increases its tranquilizing effects, but excessive stir-frying reduces its oil content and makes it less effective.[4]
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Research

Effects of seeds, leaves and fruits of Ziziphus spinosa and jujuboside A on central nervous system function. Article in Chinese
Wu SX, Zhang JX, Xu T, Li LF, Zhao SY, Lan MY.
Abstract
The seeds and leaves of Ziziphus Spinosa exert a similar inhibiting effect on central nervous system function, while the fruits have a synergism with pentobarbitol sodium and thiopental sodium on prolongation of sleep and sedation, also decreases coordinated action. Jujuboside A exerts no inhibiting effect, but a synergism with phenylalanine on central nervous system function.
PMID: 8003232  Zhongguo Zhong Yao Za Zhi. 1993 Nov;18(11):685-7, 703-4. ncbi.nlm.nih.gov

Effects of Ziziphus spinosa Hu on serum lipoprotein and experimental atherosclerosis. Article in Chinese.
Wu SX, et al. Zhongguo Zhong Yao Za Zhi. 1989.
Abstract
Rabbits of experimental group were fed synthetic food, cholesterol (0.4 g/day/rabbit) yolk powder (4 g/day/rabbit), and additionally pulp of Suanzao (10 g/kg/day). Three months later, compared with the results of the control group (TC 1334.8 +/- 327.8 mg; LDL 1261.9 +/- 356.6 mg and TG 270.8 +/- 66.9 mg), TC (574.6 +/- 271.8 mg), LDL (490.6 +/- 247.1 mg) and TG (89.7 +/- 7.8 mg) of the experimental group were significantly decreased, but in the experimental group HDL increased significantly (42.2 +/- 22.5 mg to 14.2 +/- 3.9 mg), and the AS degree of coronary artery was markedly reduced.
PMID 2610883 ncbi.nlm.nih.gov