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.
When you are drowsy with your eyes closed, your brainwaves look very different. They are a little more spread apart, and they look like zig-zag stripes. [Click for picture.] These are called alpha waves. Stage 1 Sleep. In Stage 1 sleep, your brainwaves get shorter, and they spread out a little more.