There is a rising concern about the threat of electromagnetic fields (EMFs) when using everyday items like hair dryers. Many worry about the link between EMFs and cancer. If that concerns you, a healthier alternative is to towel dry your hair as much as possible, skip the dryer and use your straightener instead. Heated straighteners uses ceramic technology to keep the plates warm, and they pose much less of a threat than hair dryers. But if you need a hair dryer, look for those designed with low-EMF technology.