Negative Effects of Television
Television is one of the most popular forms of entertainment in the world. It can provide us with information, education, entertainment and relaxation. However, watching too much television can also have negative effects on our health, behavior and cognition. In this essay, I will discuss some of the negative effects of television based on scientific research.
One of the negative effects of television is obesity. According to a study published in the Journal of the American Heart Association, adults who watch television for three or more hours daily are at a two-times higher risk of premature death than those who watch TV for an hour or less TV is a sedentary activity that reduces physical activity and increases calorie intake. Obesity can lead to various health problems such as diabetes, heart disease and cancer.
Another negative effect of television is psychological distress. Studies in psychology have shown that watching intense emotions on television leaves a long-lasting impression on one’s mind. Horror scenes or other frightful scenes on television have a negative impact on the minds of people watching. Verbal, physical, or any other form of abuse shown on TV has a psychological effect on the viewers. These negative emotions can cause anxiety, depression, aggression and low self-esteem.
A third negative effect of television is cognitive decline. A study conducted by researchers at the Johns Hopkins Bloomberg School of Public Health suggests that greater amounts of TV viewing can lead to reduced amounts of cranial gray matter—home to the neurons that perform the bulk of our mental processing. The study found that those engaging in hours of additional daily viewing, or more, had a half percent reduction in gray matter on the MRI scan performed at age 50. Gray matter is responsible for memory, language, reasoning and other cognitive functions.
In conclusion, television can have negative effects on our health, behavior and cognition if we watch it excessively. We should limit our TV time and choose high-quality programs that can enrich our minds and lives. We should also balance our TV viewing with other activities such as reading, exercising and socializing.
电视的负面影响
电视是世界上最受欢迎的娱乐形式之一。它可以为我们提供信息,教育,娱乐和放松。然而,过度观看电视也会对我们的健康,行为和认知产生负面影响。在这篇文章中,我将根据科学研究讨论一些电视的负面影响。
电视的一个负面影响是肥胖。根据《美国心脏协会杂志》发表的一项研究,每天观看三个小时或更长时间的电视的成年人比每天观看一个小时或更少时间的电视的成年人死亡的风险高出两倍。看电视是一种久坐不动的活动,它减少了体力活动并增加了热量摄入。肥胖会导致各种健康问题,如糖尿病,心脏病和癌症。
电视的另一个负面影响是心理压力。心理学的研究表明,观看电视上的强烈情绪会给人的心灵留下长久的印象。电视上的恐怖场景或其他可怕的场景对观看者的心理有负面影响。电视上展示的言语,身体或其他形式的虐待对观众有心理影响。这些负面情绪会引起焦虑,抑郁,攻击性和自尊心低下。
电视的第三个负面影响是认知能力的下降。约翰斯·霍普金斯彭博公共卫生学院的研究人员进行的一项研究表明,更多的电视观看时间会导致颅内灰质的减少——这是神经元执行大部分心理处理的地方。该研究发现,每天多看小时或更长时间的电视的人在50岁时进行的MRI扫描中灰质减少了百分之零点五。灰质负责记忆,语言,推理和其他认知功能。
总之,如果我们过度观看电视,电视会对我们的健康,行为和认知产生负面影响。我们应该限制我们的电视时间,并选择可以丰富我们的思想和生活的高质量节目。我们还应该用其他活动如阅读,锻炼和社交来平衡我们的电视观看。