Electromagnetic radiation consists of coupled electric and magnetic fields.
Here are some interesting links with quotes listed below:
Simple Tips to help Lower your EMF exposure
"For health, your body must be able to communicate within itself, that is, to be in harmony with the natural rhythm of the earth and all life. The chaotic and unpredictable patterns from electrosmog can create noise in your body and force your body out of harmony."
"If you hold a liquid-filled compass over your sleeping area, north should always be north; a spinning compass signals residual magnetism"
"It's during sleep that your body regenerates and detoxifies, so you want your bedroom to be a sleeping sanctuary with very low EMF issues. It's a given that you're going to be exposed to varying levels of EMF during your waking hours, so giving your body a break during the night is really important."
Wikipedia on Electromagnetic Shielding
I have been told that cell phones use radio and microwave frequencies to receive and transmit signals. This means that the invisible wavelength is about 12cm!
"The door of a microwave oven has a screen built into the window. From the perspective of microwaves (with wavelengths of 12 cm) this screen finishes a Faraday cage formed by the oven's metal housing. Visible light, with wavelengths ranging between 400 nm and 700 nm, passes easily through the screen holes."
"Copper is used for radio frequency (RF) shielding because it absorbs radio and magnetic waves"
More About Shields
"A Smart meter is a radiofrequency (RF) emitting device that the utility company has installed on your gas or electric meter. The RF signal emitted transmits information back to the utility company about your gas or electric usage. The signal is intermittent, but operates 24/7. Usually, the utility company will not permit you to completely block this transmission. However, you can shield your body and your living space to minimize the amount of RF exposure you receive."
Shielding Clothing and Accessories
Wow this is interesting! Remember RF means Radio Frequencies are blocked.
EMF and Gemstones and Noble Metals
Gemstones in themselves may not shield radiation, but they do contain elements to help with your body's own electric field and to keep it strong!
EMF and GEMSTONES “[Stones] emit measurable frequencies of radiation in the range of infrared and ultraviolet, as well as of visible light. And although radiation from crystals is of a low intensity, because of its regularity and duration it does have great effect! For comparison, imagine a vibrating guitar string, which can barely be heard in a room, but that sounds beautifully loud through the medium of the guitar’s wooden body. Analogously, the weak radiation of a crystal may at times cause a strong reaction in our organism.”