DR. WEEKS’ COMMENT: Probably, your portable phone is a DECT phone. DECT stands for Digital Enhanced Cordless Telecommunications. It is very dangerous. It should not be legal. Probably yours is a 5.8 GHZ multihandset which is continuously transmittting. See http://www.emfacts.com/papers/dect.pdf . Having a DECT phone pugged in is like having a powerful radio antennae in your bedroom.
The older Uniden phones are safer for many reasons.
Suggestion: Telepapthy remians our best option…
Medical warnings needed on DECT cordless phone use
J. Aust. Coll. Nutr. & Env. Med. Vol. 25 No. 2 August 2006 (accepted for publication)
By Don Maisch EMFacts Consultancy
In mid July I was contacted by a female who was on a waiting list to see an ACNEM affiliated doctor specializing in treating Chronic Fatigue Syndrome (CFS). She was very concerned that she may have to sell her home because she thought that her insomnia and fatigue had something to do with her house and the possibility of excessive EMF exposure was uppermost in her mind.
I asked her about the usual sources of exposure, such as electric blanket use at night, heated water beds, proximity to powerlines, location of the meter box, etc. All seemed okay until I asked if any appliances were by the bed. She revealed that some months earlier she had purchased a DECT cordless phone which was now on the bedside table. As I had previously spoken with two people in
As a result of the widespread use of DECT phones in Australian homes, it is essential that
medical practitioners working with patients who are having fatigue and sleep problems, for whatever reason, advise them not to use DECT phones as a precaution. Consider:
The problem with DECT
Digital Enhanced (formerly European) Cordless Telecommunications (DECT) telephones have been used in
use of 2.4 GHz ‘wireless local area networks’ (WLAN) in homes and offices. This is causing increasing interference or ‘congestion’ in the 2.4 GHz band thus necessitating a move to a higher frequency. (3)
2 A major difference between the older cordless phone and the DECT cordless phones is that the DECT phone’s base station continuously emits pulsing microwave radiation at full power as long as the base station/charger is plugged into the 240 VAC wall socket. This means that the base station, usually placed on a bedside table, or on a work desk, is broadcasting a 2.4. or 5.8 GHz transmission (in
In a situation where a sleeper is about half a meter away from a typical DECT phone placed on a bed side table, he or she is constantly being exposed to a pulsing microwave signal with an electrical field strength of about 6.5 Volts per meter (V/m) – the max. limit of the meter. (4) According to the manufacturer of the meter an electric field level of 6 V/m is roughly equivalent to a power density of 10 microwatts per square cm. (10uW/cm2) for continuous wave transmissions – which cannot be applied to pulsing DECT transmissions. According to a paper published by the Interphone Study group (
These figures may appear to be insignificant in isolation but when compared to epidemiological studies / surveys that considered fatigue and sleep disruption in humans exposed to radiofrequency transmissions, cautionary advice is warranted. For example, in a
In a large-scale five-year study on people living near a short-wave transmitter in
3 Whether or not this makes for happy babies is debatable, for according to the
organization Powerwatch: “Over the past five years we, with the help of parents, have measured a variety of baby monitors and the DECT pulsing ones seem to be far more disruptive of the infant’s sleep and state of contentment (causing restlessness, irritability and crying). The old wired ones and the older “analogue” cordless ones do not seem to cause the same problems if kept at least one metre from the cot / bed. We have had a number of reports from parents that their babies did not sleep well and cried a lot
when they used DECT monitors but were ok when no baby monitor was used. When they then tried a cheaper analogue monitor, the infant then slept as well as they did with no monitor. A DECT monitor placed in your baby’s bedroom will expose them to more pulsing microwave radiation that living near to a mobile phone base station mast would do. As a result, whilst there have been no studies done into baby monitors specifically, studies that cover mobile phone masts provide a good background to the effects that would be expected in your baby.” (9)
Soon after DECT phones were first introduced in
phone was removed from the bedroom or neighboring apartment, the infant’s heart beat
returned to normal. (11) Concerns within the German medical community led to the Freiburger Appeal in October 2002 , signed by over 130 medical practitioners from the German environmental medicine medical organisation, Interdisziplinäre Gesellschaft für Umweltmedizin e. V. (IGUMED). The appeal was to express their concern over their medical observations of adverse health impacts from the use of both cell phones and DECT cordless phones. Symptoms were attributed to exposure to pulsed microwave radiation from cell phone and DECT technology.
The following is an extract:
Out of great concern for the health of our fellow human beings do we – as established physicians of all fields, especially that of environmental medicine – turn to the medical establishment and those in public health and political domains, as well as to the public.
We have observed, in recent years, a dramatic rise in severe and chronic diseases among our patients, especially:·
Learning, concentration, and behavioural disorders (e.g. attention deficit disorder, ADD) 4
· Extreme fluctuations in blood pressure, ever harder to influence with medications
· Heart rhythm disorders
· Heart attacks and strokes among an increasingly younger population
· Brain-degenerative diseases (e.g. Alzheimer–s) and epilepsy
· Cancerous afflictions: leukemia, brain tumors
Moreover, we have observed an ever-increasing occurrence of various disorders, often
misdiagnosed in patients as psychosomatic:
· Headaches, migraines
· Chronic exhaustion
· Inner agitation
· Sleeplessness, daytime sleepiness
· Susceptibility to infection
· Nervous and connective tissue pains, for which the usual causes do not explain even the most
Since the living environment and lifestyles of our patients are familiar to us, we can see especially
after carefully-directed inquiry a clear temporal and spatial correlation between the appearance of
disease and exposure to pulsed high -frequency microwave radiation (HFMR), such as:
· Installation of a mobile telephone sending station in the near vicinity
· Intensive mobile telephone use
· Installation of a digital cordless (DECT) telephone at home or in the neighbourhood”. (12)
Specifically in relation to DECT phones the IGUMED called for a ban on DECT telephones in preschools, schools, hospitals, nursing homes, events halls, public buildings. They also called for a revision of the DECT standards to reduce the radiation intensity. (13) The German Federal Radiation Protection Agency (Bundesamt fur Strahlenschutz – BfS) has expressed concerns over DECT phone use. They stated in a January 2006 press release that a DECT cordless phone is often the strongest single source of microwave radiation in a private home. To prevent possible health risks the Agency recommended minimizing personal radiation exposure (if a DECT phone is used) by placing the base station in a place where you do not spend much time, for example a hall. For the workplace the Agency specifically advised to avoid placing DECT phones on work desks and called upon manufacturers to redesign the phones to include a feature of power output control, so that the power output during a call would be adapted to the distance of the handset from its base station. This would allow phone use only to the level of power necessary to keep the communication going and power would be down while on standby and connected to the base station/charger. (14) In December of 2005 the Public Health Department, Salzburg Region, Austria issued advice to the government, schools and parents warning of the lack of studies available on either short-term or long-term health effects from WLAN and DECT devices. However the department saw evidence of possible adverse effects such as headaches, concentration difficulty, restlessness,
and memory problems etc. The official advice of the Public health Department is not to use WLAN and DECT in Schools or Kindergartens. (15)
5 Of course the industry manufacturing DECT technology say that there is no conclusive evidence that DECT technology is harmful. This is true, especially considering that the technology is being developed and marketed well before any relevant research on possible long-term health effects. For example:
In July 2006, the findings of an epidemiological study on DECT phone use by Joachim Schuz et al was published in Radiation Research . This study found no evidence of a higher risk of brain tumours (Glioma and Meningioma) in a small number of exposed subjects that slept close to a DECT base station in the bedroom. (16) This study will no doubt be quoted by the DECT industry as proof that their phones are safe, but the concerns over DECT phones and possible health hazards have not been about the possibility of brain tumours, as examined in this article. Simply put: the researchers did not look at the relevant health issue. A far more useful investigation could have looked for sleep disruption and fatigue in the subjects sleeping next to a DECT phone.
As for a lack of statistical power, out of the total of 747 cases of Glioma and Meningioma
combined in the Schuz study, only 10 people were identified who had definitely or possibly placed their DECT cordless phone base station by the bed. In addition, brain tumours can take many years to develop, with evidence pointing to a 10-year latency. (17) The case could therefore be made that widespread DECT phone use has not gone on long enough to see any population trends in relation to brain tumour incidence. For example, in the Schuz et al study, out of 366 Glioma cases only two had used DECT for 5+ years (controls 732/6) and for the 381 Meningioma cases only four were in the 5+ year category (controls 762/7). (18) Therefore the study’s conclusion that it is “a first indication that residential low-level exposure to RF EMFs may not pose a higher risk of brain tumors” is overstating the case.
As exemplified in this paper, there is a body of evidence that warrants medical practitioners to take a precautionary approach to DECT technology and to, at the very least, advise patients with sleep and fatigue symptoms to avoid the use of DECT phones altogether. The traditional wired phone may be more inconvenient, but may prove to be far safer in the long run. If patients insist on having a DECT phone, at least advise them not to place the base station by the bed or anywhere where they spend extended amounts of time. As for a recommended distance from a bed head or desk, at lease three meters would be an absolute minimum. It is recommended that advice to new parents would be to have nothing to do with DECT baby monitors whatsoever.