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.
Normal Occurrence of Alpha Waves. 1  Occipital Alpha is the dominant rhythm in relaxed wakefulness in 85% of healthy adults with closed eyes (Occipital = Occipital lobe at the back of the head). 2  Alpha activity may spread to temporals and parietals in some people and this is considered normal. 85% of adults have a resting Alpha rhythm between 9.5-10.5 Hz. Some people have Alpha variants (slower or faster) that are generally considered normal if localized to the occipitals & attenuating (diminishing) with eye opening.