Severe leg pain, swelling, and tenderness after an injury can also be a sign of bone fracture. Aching or itching in the legs maybe a symptom of varicose veins, those prominent blue or purple veins on the legs or ankles. If you have the following symptoms, call your doctor: Persistent pain in your leg.
Alpha waves are one type of brain waves detected either by electroencephalography (EEG) or magnetoencephalography (MEG) and predominantly originate from the occipital lobe during wakeful relaxation with closed eyes.
Beta Brain Waves: 12 Hz to 40 Hz. Beta brain waves are considered fast brain wave activity with a frequency range from 12 Hz and 38 Hz (cycles per second). There is a degree of leniency when it comes to the range, some consider the bottom cutoff for beta waves to be 12 Hz, others 13 Hz, and others 12.5 Hz.