医生提醒:晨起这种不经意行为,可诱发心梗和中风
在日常生活中,相信大多数人都有过憋尿的经历,工作忙没时间、外出找不到厕所、开会或坐车时,都可能使我们不得不暂时憋尿。偶尔憋一次尿对身体健康可能不会造成明显损害,但有一种憋尿行为,则可能诱发心梗和脑中风,这种就是晨起憋尿的习惯。听上去好像是危言耸听,但在临床中因憋尿引发心梗和脑中风入院的并不少见,且看下面分析。
憋尿的危害
正常成人一天尿量约为1000-2000ml,当膀胱充盈时会反馈至大脑,大脑接收到信号从而产生尿意促使人们排尿。憋尿使尿液不能及时排出,会引起膀胱过度充盈导致膀胱破裂。长期憋尿还会引起膀胱功能减退,导致膀胱炎、尿路结石、尿路感染、前列腺炎、肾功能损害甚至尿毒症,还容易促使血容量上升,引发高血压。
晨起憋尿可能诱发心梗和中风
许多人可能有夜间尿急,但此时身体正处于熟睡状态,特别在冬天,于是就强忍着到早上起床再上厕所的习惯,这种习惯其实很可能会诱发心梗和脑中风,特别在老年人和有心血管基础疾病的患者当中。
首先夜间长时间憋尿,尿液中的毒素不能及时排出,会容易引起酸碱平衡失调,电解质紊乱,患者可能会出现疲乏、恶心呕吐、嗜睡等症状。
其次,膀胱中尿液过多,会反射性引起肾小球滤过率减少,对水的重吸收增加来减少尿液生成,这样的后果是血容量上升,引起血压急剧升高,则会诱发心梗和脑中风,特别在血管本身就不怎么好的老年人和高血压患者中更容易发生。
再者,当憋了一晚上的尿在晨起突然排出,膀胱压力下降过快,会促使心率加快,引起突发的排尿晕厥,同样可能会诱发心梗和脑中风。有人会说,为了防止夜间憋尿,我从晚饭后就不喝水总可以吧?这样做同样会有危害,长时间不喝水也会使血容量降低,血液黏稠度增加,会增加脑梗塞的风险。
所以,最好的做法是无论什么情况都不要憋尿。每天补充充足的水分,也要保证每天足够的尿量,有进有出,进出平衡,尽量减少诱发心梗和脑中风的风险。
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