肥胖是一种全身性疾病，可能导致身体出现以下异常：
首先，肥胖会导致高脂血症、高血糖症、高血压、高尿酸血症等代谢紊乱；
其次，肥胖会增加颈椎、腰椎、肩周、膝关节和肘关节的负担，导致骨关节疾病，如颈椎病、腰椎间盘突出和狭窄、根尖周炎、滑膜炎、股骨头坏死等；
第三，肥胖会增加心脑血管疾病的发生率，如脑供血不足、心肌缺血、冠心病、脑梗塞等；
第四，肥胖还可能导致胸廓活动受限，从而影响呼吸，导致屏气、气短、呼吸困难等症状；
第五，肥胖可能导致咽腔变窄，引起夜间睡眠呼吸暂停综合征。
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