People in the treatment group were given the drug propranolol , a beta-blocker that has long been used for conditions like high blood pressure and performance anxiety ; it inhibits norepinephrine , a neurotransmitter involved in the production of strong emotions .
It works by altering levels of serotonin and norepinephrine , two chemicals that help regulate satiety .
它通过改变血清素和去甲肾上腺素两种帮助调节饱腹感的化学物质的水平来实现这一点。
The deepening bond of attraction is down to rising levels of serotonin , dopamine and norepinephrine , all of which make us feel calm and reduce anxiety .
深化的吸引亲和,则来自血清素、多巴胺、去甲肾上腺素水平的上升,所有这些让我们感到平静、压力减轻。
These adrenal-produced hormones include cortisol , aldosterone , the adrenaline hormones epinephrine and norepinephrine and a small fraction of the body 's sex hormones ( estrogen and androgens ) .
Don 't forget , all the stress triggers increase production of adrenaline , cortisol , and norepinephrine , which causes your arteries to constrict , making your blood pressure go up .