Psychosomatic Medicine:正念可以减轻长期压力

2021-10-11 MedSci原创 MedSci原创

与压力相关的精神和身体疾病是 21 世纪的主要健康风险之一。

与压力相关的精神和身体疾病是 21 世纪的主要健康风险之一。暴露于社会心理压力主要由神经内分泌压力系统、交感神经 - 肾上腺 - 髓质和下丘脑 - 垂体 - 肾上腺 (HPA) 轴的长期激活介导的,对免疫和代谢过程产生复杂的影响,并且与血管、代谢和自身免疫疾病等疾病的发生发展有着密切的因果关系。

而随着神经科学的不断发展,正念与现代心理学逐步融合,为传统临床心理学带来了革命性变化。科学家们正在寻求有效的方法来长期减少日常压力。多项研究显示,即使是在健康人群中进行正念训练后也能感受到更少的压力。然而,目前尚不清楚正念训练对减轻日常压力带来的长期益处。

近日,发表在Psychosomatic Medicine杂志的一项研究显示,正念、感恩或同情等技能的心理训练会降低头发中皮质醇的浓度。头发中皮质醇的浓度被认为是衡量长期压力的合适指标。当人们面临巨大的挑战时,皮质醇释放,进而保持身体的警觉并调动能量来克服挑战。压力持续的时间越长,皮质醇在我们身体周围循环的时间就越长,并且在头发中积累的就越多。

在这项研究中,研究人员对参与者进行了为期 9 个月的心理训练的压力水平,每三个月对前三厘米头发中的皮质醇含量进行测量。心理训练内容包括正念、感恩或同情等课程,训练长达九个月,每周6天,每天 30 分钟。测定4个时间点的慢性压力指数:训练前和 36 9 个月。主要结果指标是头发中的皮质醇 (HC) 和可的松 (HE) 浓度以及自我报告的长期压力。

结果显示,经过六个月的心理训练,参与者头发中的皮质醇含量显著下降,平均下降为25%。在前三个月,有轻微的缓解效果,而在接下来的三个月中有所增加。在后三个月里,皮质醇显著低于基线水平。

心理训练对HC和HE的影响

值得注意的是,研究人员表示,只有足够长的训练才能达到预期的减压效果。效果似乎并不取决于心理训练内容。所研究的几种心理方法可能在改善人们应对慢性日常压力的方式方面同样有效。

而早期,研究人员使用相同的样本进行了缓解急性压力情况的影响。在这项研究中,参与者被置于压力很大的工作面试中,并且必须在观察下解决困难的数学问题。结果表明,接受过社会认知或社会影响训练的人在压力下释放的皮质醇比未接受过训练的人少 51%

总体而言,证明心理训练对个体长期生理应激负荷存在有益的影响。该研究结果显示,通过降低全身皮质醇浓度,连续36个月每天大约30分钟的常规心理练习可以降低压力相关疾病的易感性,从而对从总体健康产生积极的影响。

原始出处

Lara M.C. Puhlmann et al, Contemplative Mental Training Reduces Hair Glucocorticoid Levels in a Randomized Clinical TrialPsychosomatic Medicine (2021). DOI: 10.1097/PSY.0000000000000970

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    2022-05-21 jeanqiuqiu
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    2021-10-23 kalseyzl
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    2021-10-11 ms5000000778304728

    压力对心脑血管相关的慢性病而言,是一项长期风险因素,压力刺激下RAS系统激活,影响心脏、血管、肾脏等健康。应对压力需要更多的训练。

    0

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人们常常说:“冷静下来,否则你会得心脏病。”这是有一定原因的。慢性压力——如工作、金钱或人际关系问题带来的压力,有可能会增加心脏病发作的风险。目前,研究人员通过对忙碌的医生和疲倦的啮齿动物进行研究,从生理水平上,解释了为什么长期的压力会危害心血管系统。他们建议,这项研究围绕着进入血液循环的免疫细胞开展。 长期性压力会引起血管内动脉粥样硬化斑块发生“危险的”变化 图片来源:PI