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.
Alpha brain waves, which are around eight to 13 hertz, usually occur when you are feeling relaxed, happy and in a positive mood, such as when you're doing something you enjoy or makes you feel peaceful. Theta brain waves, between four and seven hertz, are slower and are produced during light sleep and deep meditation.