手机的坏处.ppt

While cell phones have proved to be highly beneficial tools for many tasks and activities, some negative effects do exist.
radiation
sadness
dangerous
Hazardous Driving(危险驾驶)
Perhaps the most negative effect of a cell phone is its frequent while driving. This detracts from the primary purpose of driving and has been responsible for many deadly crashes.
the harmful effects of microwave radiation of hours of cell phone chatting on the brain, affected sleep patterns in pre-teens and teens is a more serious issue.
radiation can cause sore eyes, headache and cancer.
With newer cell phones being all-in-one entertainment devices, young users tend to get immersed in their cell phones for hours on end. Family interaction becomes limited, and negative consequences happen o