去甲肾上腺素是大脑产生的一种神经递质化学物质。根据马里兰大学医学中心(University of Maryland Medical Center)的研究，这种化学物质在医学上的特征是儿茶酚胺(catecholamine)和多巴胺(多巴胺)以及血清素，会在你感到压力或恐惧时释放到血液中。某些补充剂可以增强大脑去甲肾上腺素的分泌，有助于缓解压力和焦虑的症状。在服用补充剂以提高体内去甲肾上腺素水平之前，请咨询医生。
泛酸
泛酸，通常被称为维生素B-5，是一种缓解压力的维生素。This vitamin may aid your body in the production of catecholamines, including norepinephrine, dopamine and serotonin. It also aids in the conversion of carbohydrates and fats in food sources into energy for the production of healthy brain cells, which may help stave off anxiety and depression. Pantothenic acid is typically found in B-complex vitamin supplements, although you may find this vitamin as a standalone supplement in health food stores and pharmacies.
人参
《新草药》的作者迈克尔·卡斯特曼说，人参的治病功效最早见于5000多年前中国神农氏写的一本草药集《草经》。Ancient Chinese healers believed that this herb could enhance spiritual enlightenment and promote longevity. The chemical compounds in ginseng root may help increase production of neurotransmitter chemicals, including norepinephrine, curbing anxiety and stress. Talk to your physician before using ginseng -- in rare cases, this herb may cause insomnia.
维生素C
虽然维生素C以其增强免疫系统和抵御病毒和细菌感染的能力而闻名，但这种维生素也可以帮助抑制焦虑、抑郁和压力。鲍尔奇说，维生素C有助于产生去甲肾上腺素，促进镇静感，并可能减轻恐慌发作。这种维生素可以作为独立的补充剂，也可以作为多种维生素补充剂。