رد: موسوعة برزنتيشن منقوله ..(my- nana)..
أخطار الموبايل
•Cell phones emit low levels of RF (radio frequency) radiation. Large amounts of this energy can heat and damage tissue, especially around the eyes , which do not have enough blood flow to carry away such heat. There is also concern that cell phones might cause cancer, headaches, sleep problems and memory loss.
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