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How does Cell phon﻿e use Electromagnetic Radiation?

Cell phone's send signals using radio waves, which contain radio-frequency energy and a form of electromagnetic radiation. Electromagnetic waves are electric and magnetic fields which travel in a vacuum and in plain air.

Cell phones only work when they are in or near a cellular system. The cellular system works by dividing big regions into many small areas. Each area has one or more towers that send signals to a central hub. Cellular phones sent and pick up signals using high frequency microwaves.

Cellular phones communicate when one phone sends signals to the other. Communications satellites pick up signals and then send the signals back to the receivers. Radio waves from one phone are sent up to a communication satellite. The satellite picks up the waves and send it back to the receiving phone.

The concern is that by using cell phones very often when the cell phone is placed close to the head during use, puts the radiation in direct contact with the tissue of the head.

How does Cell phone effect human health?

Cell phones effect human health by having an influance on the brain. Talking more than 50 minutes on the phone brings to a higher level of sugar in the brain. A sign of increased activity. From the moment mobile phone use has become very common all over the world many researches has considered the intrest on the influence of cell phones on the human body.

A study that was made on a group of 47 people checked the influence of magnetic fields coming from a phone antenna on the human brain. The research suggested that brain activity is affected, but cannot prove any conclusions about possible health risk. Mobile phones were attached to both ears of each person that took part in the research. One phone was off, while the other one was on but muted so the person could not tell the difference. Their brains were then scanned in order to reveal changes in sugar use which increased by 7% in parts of the brain close to the antenna.

The researchers conclude that "The human brain is sensitive to the effect of magnetic fields from increased cell phone exposures".

Citations

"mobile phones "affect the brain."//http://www.bbc.co.uk/news/health-12541117//. bbc, 2011. Web. 11 Apr 2011.

"mobile phones and health."//http://www3.ntu.edu.sg/home/eylu/fdtd/phone0.htm//. N.p., n.d. Web. 11 Apr 2011.

"Do mobile phone radiations affect the human body."//http://www.ygoy.com/index.php/do-mobile-phone-radiations-affect-the-human-body///. YgoY, 2011. Web. 11 Apr 2011.

