Avoid EMF Radiation

Probably the biggest step you can take to reduce your exposure to EMFs is to get rid of your in-home Wi-Fi. That won't be a popular action, but you should balance the convenience against the health problems that can arise as a result of the EMF Health Impacts I've described.
- Replace your wireless devices, where possible, with Ethernet cabling, which is designed to keep the signal in the wire. When I replaced the wireless router in my office with cabling a couple years ago, I noticed a dramatic decrease in the number of skin lesions (warts, moles, etc.) that had recently become a growing concern.
- If you must have Wi-Fi, restrict it to a part of the house that in which you don't spend a lot of time, and/or turn it off at night.
- Don't carry your cell phones or tablet around next to your body. The closer it is to you, the stronger the EMF, by a lot. Use the speakerphone or an earphone when on a call.
- Put your cell phone in airplane mode at night, or leave it somewhere away from the bedroom.
- Don't use smart devices.
- Wire your TV directly to your internet service.
- Keep wireless speakers, headphones, etc. powered down when not in use.
- It probably doesn't do much good to enclose your cell phone in a shield, unless that shield only is between the phone and your body. Cell phones are designed to use the minimum amount of power needed to communicate with the towers or Wi-Fi; they will just boost up their power if they can't connect, running down the battery faster.
- Wireless chargers (such as for electric toothbrushes, cell phones, etc.) are probably not a big concern because the device needs to be right up against the charger; the effect falls off rapidly as distance increases.

To detect EMF Radiation, I use the EMF meter pictured here on the right. I've found it very consistent; one can be obtained for about $200.
In addition to verifying that my efforts to mitigate excessive electromagnetic fields were working, I also have discovered some surprising sources of EMF radiation. One was a bed frame that allowed elevation of the head and foot sections using a remote control. The receiver on the bed frame was continuously putting out a moderate signal (positioned under where my pelvis would be when lying on the bed), even when the remote control was not in use. I wound up plugging the lift mechanism into a switched wall outlet, and now only turn it on when I want to change the bed configuration. (This was a Reverie bed frame.)