According to National Cancer Institute (USA), there are two types of electromagnetic radiations – ionizing and non-ionizing. The first type is found in X-Rays etc, and it has been proved that they cause severe diseases in people who are exposed to such emissions. Cellphones emit non-ionizing radiations that are picked up by biological cells and tissues that are directly in contact with cellphones – hands and ears. The National Cancer Institute says there is no proof that cellphones can actually increase the risk of cancer but still, it can increase the temperature of body cells in contact with cellphones.

In another study by Dr. Girish of Indian Thermal Analysis Society, a human body be safely kept in a microwave oven of 700-1000W for only 19 minutes. This means that people can carry on a cell phone conversation only for 19 minutes at a time without harming themselves.

It has also been found by studying rats that prolonged exposure to electromagnetic radiation can lead to severe brain damage. People using cellphones to a particular brain side have more risk of damaging that side of the brain – leading to complex disorders that may or may not be reversible.