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Health – Heart-circulatory system, heat regulation, blood

The heart-circulatory system is the human body’s transport system of the human body and responsible for the maintenance of blood circulation. Oxygen and nutrients are transported to every cell of the body and their metabolic products removed. In addition the heart-circulatory system also plays a central role in protecting against illnesses and in heat regulation. In industrialised counties illnesses of the heart-circulatory system are amongst the most frequent causes of disease and death. In particular stress, smoking, lack of exercise and an unhealthy diet are responsible for this. 

The influence of EMFs

The effects of high and low frequency EMFs on the heart-circulatory system have been studied in many scientific papers. In so doing cardio vascular changes, such as changes in blood pressure, heart rate, electrocardiograms (ECG) and blood circulation were investigated in connection with mobile telephone use or occupational radiation exposure.

The majority of studies noted no change to the pulse, blood pressure and heart beat due to high frequency radiation. Several deviations in the results could be attributed to other influences. No clear indications of increased blood circulation due to mobile telephone use were determined. The feeling of warmth that has often been reported is primarily due to holding the telephone next to the ear (insulation effect) and the warmth of the battery, not due to additional radiation exposure.

The current studies provide no evidence for measurable effects on the heart-circulatory system in the range of low frequency radiation. Furthermore no connection with cardiovascular illnesses could be observed.

Selected literature (overviews)

Bundesamt für Umwelt (BAFU) (2007). Hochfrequente Strahlung und Gesundheit. Bewertung von wissenschaftlichen Studien im Niedrigdosisbereich. Bern: BAFU.

Dürrenberger, G., Leuchtmann, P., Röösli, M., Siegrist, M., Sütterlin, B. (2015). Fachliteratur-Monitoring "EMF von Strom-Technologien". BFE, Bern. Publication 291030, section 3.3.6.3.

Hug, K., Röösli, M. (2013). Strahlung von Sendeanlagen und Gesundheit. Bewertung von wissenschaftlichen Studien im Niedrigdosisbereich. Stand: Dezember 2012. Umwelt-Wissen Nr. 1323. Bern: BAFU.

Independent Advisory Group on Non-Ionising Radiation (AGNIR) (2012). Health effects from radiofrequency electromagnetic fields.  U.K. Health Protection Agency, Oxfordshire. Chapter 7.2.1, 262-263.

International Commission on Non-Ionizing Radiation Protection (ICNIRP) (2010). Guidelines for limiting exposure to time-varying electric and magnetic fields (1Hz to 100kHz). Health Physics, 99, 6, 818-836.

International Commission on Non-Ionizing Radiation Protection ICNIRP (2009). Exposure to high frequency electromagnetic fields, bilogical effects and health consequences (100 kHz-300 GHz). Chapter II.5.3, 161-169.

Kheifets, L., A. Ahlbom, C. Johansen, M. Feychting, J. Sahl and D. Savitz (2007). Extremely low-frequency magnetic fields and heart disease. Scand J Work Environ Health, 33, 1, 5-12.

McNamee, D.A., Legros A.G., Krewski, D.R., Wisenberg, G., Prato, F.S.,Thomas, A.W.(2009). A literature review: the cardiovascular effects of exposure to extremely low frequency electromagnetic fields. Int Arch Occup Environ Health, 82 (8), 919-933.

Sienkiewicz, Z., Schüz, J., Poulsen, A.H., Cardis, E. (2010). Risk analysis of human exposure to electromagnetic fields. European Health Risk Assessment Network on Electromagnetic Fields Exposure (EFHRAN): D 2 - Report - risk analysis of human exposure to electromagnetic fields. Brussels: European Commission.

Research Projects by FSM about Heart-circulatory system, heat regulation, blood

EMF und Hirn: Effekte auf zerebralen Blutfluss und Blutvolumen sowie auf neurale Aktivität

Prof. Dr. Martin Wolf
Universitätsspital Zürich, Klinik für Neonatologie

Basic research (Closed)

Das Projekt klärt mit Hilfe der Nahinfrarotspektrophotometrie (NIRS) schnell auftretende Wirkungen von EMF auf die Blutzirkulation des Gehirnes und bestimmt die Dosis-Wirkungs-Kurve. NIRS ist eine Methode zur nicht-invasiven Messung von Blutfluss und Blutvolumen.

Publication/s:
Wolf, M., Haensse, D., Morren, G., Froehlich, J. (2006) Do GSM 900MHz signals affect cerebral blood circulation? A near-infrared spectrophotometry study, in: Optics Express, 14:6128-6141.  Peer reviewed

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Auswirkungen elektromagnetischer Felder des Typs GSM auf Schlaf, Schlaf-EEG und regionale Hirndurchblutung

PD Dr. Peter Achermann
Universität Zürich, Institut für Pharmakologie und Toxikologie

Basic research (Closed)

Das Projekt klärt ab, ob eine Exposition des Gehirns gegenüber Handystrahlung vor dem Schlaf ähnliche Auswirkungen hat wie Exposition während des Schlafs. Zudem wird mit einer PET-Studie untersucht, welche Hirnregionen durch lokale EMF-Bestrahlung beeinflusst werden.

Publication/s:
Huber, R., Schuderer, J., Graf, T., Jütz, K., Borbély, A.A., Kuster, N., Achermann, P. (2003) Radiofrequency electromagnetic field exposure in humans: estimation of SAR distribution in the brain, effects on sleep and heart rate, in: Bioelectromagnetics, 24, 262-276.

Achermann, P., Huber, R., Schuderer, J., et al.   Effects of exposure to electromagnetic fields of type GSM on sleep Electroenzephalogram (EEG) and regional cerebral blood flow, in: 15th International Zurich Symposium and Technical Exhibition on Electromagnetic Compatibility 2003, Zurich, February 18-20, 2003, 289-292.

Huber, R., Treyer, V., Borbély, A.A., Schuderer, J., Gottselig, J.M.; Landolt, H.-P., Werth, E., Berthold, T. Kuster, N., Buck, A. Achermann, P. (2002) Electromagnetic fields, such as those from mobile phones, alter regional cerebral blood flow and sleep and waking Electroenzephalogram (EEG), in: J. Sleep Res. 2002, 11, 289-295.

Achermann, P., Graf, T., Huber, R., Kuster, N., Borbély, A.A. (2001) Effects of exposure to pulsed 900 MHz electromagnetic fields on sleep and the sleep electroencephalogram, in: 14th International Zurich Symposium on Electromagnetic Compatibility 2001, Zurich, February 20-22, 2001, 175.

Huber, R., Schuderer, J., Graf, T., Jütz, K., Borbély, A.A., Kuster, N., Achermann, P. (2003) Radiofrequency electromagnetic field exposure in humans: estimation of SAR distribution in the brain, effects on sleep and heart rate, in: Bioelectromagnetics, 24, 262-276.  Peer reviewed

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