Kukkonen-Harjula K, Kauppinen K
UKK-Institute for Health Promotion Research, Tampere, Finland.
Ann Clin Res. 1988;20(4):262-6.
The sauna induces changes in the secretion of hormones, some similar to changes induced in any other stress situation and others characteristic of exposure to the sauna. Noradrenaline is usually the only catecholamine raised by the sauna in people accustomed to it. The secretion of the antidiuretic hormone is increased and the renin-angiotensin-aldosterone system is activated. The concentrations of the growth hormone and prolactin, in particular, secreted from the anterior pituitary are increased in the circulation. The concentration of the immunoreactive beta-endorphin in blood may also increase which may reflect the feeling of pleasure or, on the other hand, discomfort induced by the sauna. The views on the effects of the sauna on the secretion of the ACTH and cortisol are partly contradictory, probably due to differing ways of taking the sauna bath. In Finnish sauna takers the concentration of cortisol in blood is not usually increased. The changes induced by the sauna in various hormone concentrations in the circulation are, however, normalized within a couple of hours after the heat stress.
桑拿会引起激素分泌的变化，有些变化类似于在任何其他应激情况下所引发的变化，而其他变化则是桑拿暴露所特有的。对于习惯洗桑拿的人来说，去甲肾上腺素通常是桑拿唯一能使其升高的儿茶酚胺。抗利尿激素的分泌会增加，肾素 - 血管紧张素 - 醛固酮系统会被激活。循环中，尤其是垂体前叶分泌的生长激素和催乳素的浓度会升高。血液中免疫反应性β - 内啡肽的浓度也可能增加，这可能反映了洗桑拿带来的愉悦感，或者另一方面，也可能反映了不适。关于桑拿对促肾上腺皮质激素（ACTH）和皮质醇分泌的影响的观点部分相互矛盾，这可能是由于洗桑拿的方式不同所致。在芬兰洗桑拿的人血液中皮质醇的浓度通常不会增加。然而，热应激后几个小时内，桑拿在循环中引起的各种激素浓度变化会恢复正常。
