I have been skeptical about people who claim that they are affected by the wireless signals in their homes and who prefer to stay away from all radio signals all the time. Maybe the reason behind is that those signal are not visible and if you can’t see something a person would assume that it cannot harm them. However, this experiment by nine graders proved that these signals are not 100% harmless. They placed some cress seeds in 2 different rooms with the same conditions, except one room had 2 routers in it. The result is as shown in the picture above!
Read more about this experiment and the attention it got in the link below: