GGAAAKKKK!!!! I hope not!!!

no

I wouldnt say a brain tumor... but one thing to watch out for would be clots from your legs.... look up Leg Blood clots Leg Blood Clot Causes Three factors may lead to formation of a clot inside a blood vessel. * Damage to the inside of a blood vessel * Changes in normal blood flow, including unusual turbulence or partial or complete blockage of blood flow * Hypercoagulability - A rare state in which the blood is more likely than usual to clot Any component that contributes to 1 or more of these 3 criteria can cause DVT. The more common risk factors are as follows: * Prolonged sitting, such as during a long plane or car ride * Prolonged bed rest or immobility, such as after an injury or during an illness (stroke) * Recent surgery, particularly orthopedic, gynecologic, or heart surgery * Recent trauma to the lower body, such as fractures of the bones of the hip, thigh, or lower leg * Obesity * Heart attack or heart failure * Recent childbirth * Being at very high altitude, greater than 14,000 feet * Use of estrogen replacement (hormone replacement therapy, or HRT) or birth control pills * Malignant tumors (cancer) * Rare inherited genetic changes in certain blood clotting factors * Disseminated intravascular coagulation (DIC), a medical condition in which blood clotting occurs inappropriately, usually caused by overwhelming infection or organ failure

This was a scare about electromagnetic radiation from electronics, but is almost completely false. You will not get problems from consumer power devices. People were afraid of the cell phone radiation thing, but you get more radiation (heat in your brain) from 30 minutes of hard exercise than your cell phone. Other electromagnetic waves have not been proven to cause damage either, it's just a ridiculous scare. Don't worry, computer users, you're safe.