Electromagnetic fields are a double-edged sword. They can be used appropriately for many therapeutic applications. But the indiscriminate, huge increase, in background levels of EMFs is certainly having an effect on biology.
Many health authorities state that there is no cause for concern below the thermal threshold. Suggesting that biological effects only occur if the exposure causes heating of tissues. However, biological effects of various kinds have been demonstrated 1000 times lower than the typical exposure associated with using a mobile phone.
A detailed investigation into how our bodies are affected, and at what frequencies/intensities, and what we can do to protect ourselves, and children, is overdue.