Stage 2. Next, eye movement stops and brain waves become slower, with alpha activity shutting down entirely. The brain will begin to produce â sleep spindles â â brief bursts of activity that last for about half a second before dying down. The average adult will spend most of her night in this stage.
Swollen feet and legs, referred to medically as edema, occur when fluid is retained in the spaces between body cells. Edema typically affects the feet, ankles and lower legs, but can also impact any area of the body, causing systemic symptoms. Causes:
Read More. In some situatins, ankle swelling could be the result of fluid build up in your body, either from congestive heart failure or impaired kidney function. Additionally, certain blood pressure medications, such as the calcium channel blocker amlodipine, can cause ankle swelling. Finally, ankle swelling may just be due to the effects of gravity after a long day on your feet. Discuss these possibilities with your doctor.