Someone I know is always going on about people vibrating at different frequencies. She uses world like Hertz and electromagnetic fields and but she also likes crystals and stuff. Admittedly I didn't pay much attention to science in school but this sounds made up? I mean I'm aware that matter vibrates on a molecular level but she's says you get hunches about people based on their vibration and that sort of thing. Anyone who did a science degree able to help me out? I'm not even sure what words to Google!