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:
Edema can also be an early sign of kidney disorder, heart or liver problems. Gout is another common cause of swelling of the feet and ankles. Gout occurs as a result of crystallization and accumulation of uric acid in the joints, in this case in the ankle joint. This causes inflammation and inflammation causes swelling.Swelling of the ankles can be a symptom of arthritis as well.out is another common cause of swelling of the feet and ankles. Gout occurs as a result of crystallization and accumulation of uric acid in the joints, in this case in the ankle joint. This causes inflammation and inflammation causes swelling.