SAR: Why Your Body’s “Sponge Effect” From Phone Signals Is Strictly Limited (And Safe)
Have you ever wondered how much of your phone’s invisible signals your body absorbs ? This is a fair question that makes many of us pause. The clear, science-backed answer comes down to one easy-to-understand number called SAR , and the data shows you can relax while still using your phone wisely. What SAR Actually Measures SAR stands for Specific Absorption Rate . Imagine your body as a sponge and the radio waves from your phone as a gentle sprinkle of water. SAR tells scientists exactly how much of that “water” (energy) gets absorbed into one kilogram of body tissue, measured in watts per kilogram (W/kg). Phones are tested in laboratories using special models that copy human heads and bodies. Testers run the phone at full power, right against the “ear” or “body,” and measure the peak absorption. It is like checking the temperature of a hot drink at its hottest sip to ensure that it never burns you. The Numbers That Keep You Protected In the United States and Canada, the legal ...