Tobacco smoke causes many other diseases and health problems . there are more than 4000 harmful chemicals substances in tobacco smoke , more than 40 of these are known to cause cancer 吸烟可引致许多疾病和健康问题，烟草含有超过4000种有害化学物质，其中超过40种已知会致癌。
During the past several decades , alteration of habitats has also encouraged the expansion of such diseases as hantavirus , ebola , west nile virus , dengue fever and aids 在过去数十年间，许多疾病都因为栖境改变而扩张范围，包括汉他病毒、伊波拉病毒、西尼罗病毒、登革热、爱滋病等。
Low leels of serotonin are linked with a number of disorders including aggression , anxiety , depression , obsessie compulsie disorder ( ocd ) , bipolar disorder , irritable bowel and fibromyalgia 低浓度的5 -羟色胺与许多疾病有关，如应激、焦虑、抑郁、强迫症（ ocd ） 、双相性精神障碍、肠易激症和纤维肌痛。
Any of the methods tested that successfully remove the drugs from the water also create chemical 32 ) byproducts that are themselves linked to cancer and many other diseases 所有通过测试、能够成功将药物从水中移除的方法，全部都会制造出化学物质的副产品，这些副产品本身也和癌症与其他许多疾病有关。
The human body contains certain proportion of fat for maintenance of body temperature and for reserve . however , if there is too much fat , it will increase the workload of many organs 正常人体有一定份量的脂肪，以保温及作储备，但如果脂肪过多，过份肥胖就会加重身体各器官的工作，引致许多疾病，甚至缩短寿命。
The human body contains certain proportion of fat for maintenance of body temperature and for reserve . however , if there is too much fat , it will increase the workload of many organs 正常人体有一定份量的脂肪，以保温及作储备，但如果脂肪过多，过份肥胖就会加重身体各器官的工作，引致许多疾病，甚至缩短寿命。
Complement system shows an important role in the first line of defense against infections , but the disorder of its activation can cause diseases . anti - complement therapy is a very key field in the complement research 补体系统在机体抗感染第一线防御中起重要作用，另一方面，补体异常(包括程度和部位)活化也参与许多疾病的发生和发展。
The functional and quantitative balances of the t helper cells subsets guarantee the normal immune - state of the body while the consequent disequilibrium is involved in a number of diseases , especially those caused by the immunoabnormality 辅助性t细胞亚群平衡是维持机体正常的免疫状态的重要因素,其失衡参与许多疾病,特别是免疫相关性疾病的发生、发展。
The vegetarian diet helps prevent many illnesses such as cancer and heart problems . medical research has shown that consuming vegetarian food contributes to better health . a healthy body brings personal joy and happiness for the family 吃素有助于预防癌症心脏病等许多疾病，医学研究也显示，吃素可以增进健康，有了健康的身体，心情也会愉快，更可以增进家庭的幸福。
Oxidative stress is now recognized as pathogenic factor in many human pathologic states , among them , dialysis related pathology ( drp ) , especially cardiovascular diseases is responsible for the high morbidity and mortality in this population 摘要氧化应急是指由反应性氧化物质所引起的破坏，包括对核酸、蛋白质、特殊酶以及组织器官等的破坏，氧化应急认为是许多疾病的病理因素之一。
