Electric Blanket Effects

Concerns about electromagnetic fields emitted by electric blankets spurred modifications. Newer blankets have not been found to pose a risk, although some safety concerns do apply to electric blankets, especially for infants and the elderly.

History

In the 1920s, a blanket heated with electricity was invented by Dr. Sidney Russell for use with tuberculosis patients. The blankets later became luxury items with temperature controls.

Concerns

In 1990, concern about electromagnetic fields (EMF) radiated by many appliances led manufacturers to use polarized plugs to reduce emissions. While the Food and Drug Administration declined to mandate warning labels, research had shown troubling correlations between EMF exposure and birth defects. Newer blankets are safer. In addition, the 2000 Nurses Study showed no association between electric blanket use and breast cancer.

Considerations

While electric blankets save money on heating, they should be used with caution by the elderly and very young, who may not be able to adjust controls. Overheating is a concern for pregnant women in the first trimester of pregnancy when environmental exposure to heat sources should be avoided.

Prevention/Solution

Clean blankets exactly as directed on labels. When using an electric blanket to warm a bed, turning the blanket off before getting in limits EMF exposure.

Warning

Do not use electric blankets made before 1992. Replace old electric blankets and do not use if you are incontinent.

References

• Electric Blanket Use and Breast Cancer in the Nurses' Health Study, Laden F. et.al., American Journal of Epidemiology, 2000: Vol 152, No.1: 41-49
• The effect of fever, febrile illnesses, and heat exposures on the risk of neural tube defects in a Texas-Mexico border population, Suarez L, et.al., Birth Defects Research in Clinical and Molecular Teratology 2004 Oct;70(10):815-9.

Resources

• Hampshire County Council