鲜为人知性爱的另类“好处”

　　导语：不久前，美国权威商业杂志《福布斯》一改乏味的经济评论风格，首次向读者公布了积极性生活对人体有益的医疗效果：延长寿命。北爱尔兰首府贝尔法斯特皇家大学的专家发现，性欲旺盛，且经常拥有性高潮的男性，死亡率要比那些很少做爱的男性少一半。

　　研究发现：性爱有助于让多种疾病现形

　　规律而适度的性生活除了给人带来愉悦感、调节血液循环系统和内分泌系统，还有一个重要的作用，就是帮人发现一些日常注意不到的疾病。

　　在这些疾病中，最常见的就是炎症和创伤。对男性而言，如果性生活中出现了射精痛，可能是前列腺炎、尿道炎等泌尿系统炎症在作怪。这些炎症会引起局部组织充血肿胀，而射精时一系列收缩对这些器官是一种机械性刺激，因此常伴随射精动作出现疼痛。如果男性在射精时出现血精，也就是精液带血，那就要注意前列腺和精囊是否出现了炎症。血管会因为炎症而使其脆度和通透性增加，射精时压力变大，炎症局部的小血管易出现破裂，使血液进入精液中。还有少部分血精可能是精囊肿瘤引起的。

　　女性朋友同样要留心“炎症信号”。如果性生活后出现阴道出血、阴道疼痛等症状，就要留心自己是否患上了宫颈糜烂、阴道炎等疾病。

　　用性爱助你驱走8种疾病

　　1、嗅觉迟钝：

　　性生活能促使大脑杆状细胞在嗅觉中心形成许多新的神经元，增强嗅觉。

　　2、心脏病：

　　男性一周内有3次以上性生活，能将心肌梗死和中风的发病危险减少一半。

　　3、流感和伤风：

　　美国宾夕法尼亚大学的科学家研究发现，一周有一次或两次性生活，体内免疫球蛋白A的抗体数量会增加30%，起到预防流感和伤风感冒的作用。

　　4、膀胱炎：

　　流行于全球的括约肌锻炼操对膀胱肌肉的锻炼程度类似于性爱活动。

　　5、前列腺癌：

　　射精频率越高，前列腺癌发病率越低。

　　6、肥胖：

　　一次充满激情的性爱可燃烧掉200卡路里热量，锻炼骨盆、大腿、臀部、手臂和胸部的肌肉，能够提高睾丸激素量，这有利于增强骨胳和肌肉的结实程度。《男性健康》杂志曾刊文称，被窝里是最好的健身房，人们也乐于这种锻炼方式。

　　7、忧郁：

　　美国心理学家戈登格拉普表示，性生活积极，且性伴不采取避孕措施的女性很少患忧郁症。

　　8、疼痛：

　　在高潮来临之前，后叶催产素水平升高达正常时的5倍，产生大量多肽，可缓解头痛、关节痛、偏头痛等。

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