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.
1 Alpha waves (8-13 hz) occur when we are relaxed and calm. 2  Gamma brain waves (39-100 hz) are involved in higher mental activity and consolidation of information. 3  And interesting study has shown that tibetan meditators produce higher levels of gamma than non-meditators both before and during meditation.