This could lead to pain that could last forever if they keep texting and using their thumbs like they do on their phones. Another reason why smart phones are bad for people health is they can affect your hearing. Many people all around the world use their phones as a device to listen to music a lot. Many people think that putting head phones in your ears are completely harmless. Well in fact it is damaging your ear drums more than you …show more content…
People have this sleeping aid in their body that is called melatonin. Which rises at night time to make people go to sleep and sleep well. “ Smartphones and tablets disrupt sleep, in part, because they emit what 's known as "blue" light. This light is picked up by special cells behind our eyeballs, and it communicates to the brain that it 's morning” (Khazan). So this little blue light the back of the eye is getting a signal from is telling the person that it is morning time in reality it is still night time. At night the signals in the back of the eye show red indicating that it is almost time for bed or that it is time to go to sleep but with that little light being blue and the blue signals in the back of the eye means its morning the eye thinks that it is day time when it is not so that causes you to get worse sleep than you would be getting if the room was completely dark. Not only are smart phones bad for your sleep but people can actually be allergic to cell phones. Now must people will not believe this fact but some cell phones have been tested like IPhones and Blackberry’s for nickel and cobalt contents in those types of phones. Now for most people this does not really effect but