If you must use a portable home phone, use the older kind that operates at 900 MHz. They are no safer during calls, but at least many of them do not broadcast constantly even when no call is being made.
Note the only way to truly be sure if there is an exposure from your cordless phone is to measure with an electrosmog meter, and it must be one that goes up to the frequency of your portable phone (so old meters will not be of much use). You can find meters at www.emfsafetystore.com.
As a general rule of thumb, you can pretty much be sure your portable phone is a problem if the technology is DECT, or digitally enhanced cordless technology.
Use your cell phone only where reception is good: The weaker the reception, the more power your phone must use to transmit, and the more power it uses, the more radiation it emits, and the deeper the dangerous radio waves penetrate into your body. Ideally, you should only use your phone with full bars and good reception.
Also seek to avoid carrying your phone on your body as that merely maximizes any potential exposure. Ideally put it in your purse or carrying bag.
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