The power of a radio frequency signal decreases by the square of the distance.
The The global healing center writes that “Wifi can negatively affect overall health and brain health, especially in children.” Physics teaches us that the amount of power of a radio frequency signal decreases by the square of the distance. This means that if a signal produces X amount of radiation per square foot that increasing the distance buy another foot reduces the power by the square root of two, and add 2 feet and the signal reduces by another Square root. Therefore, if a Wi-Fi produces three quarters of a watt, then the power at 3 feet is only 17% of the original signal. It is really a fantasy if you believe that a Wi-Fi signal can do any harm at all.
Now what may be a problem is your cell phone. The problem is that a cell phone is held so close to the brain that your brain receives a full dose of the radio waves. The signal of our cell phones is at the microwave frequency. As such, we could be frying our brains. This is an area that we need much more research. Unfortunately, the damage that we might be doing to ourselves may be be permanent and not reversible.