How is perspiration related to recovery after exercise? as the body perspires during exercise, water and ions are released through the skin and should be replenished by showering soon after the workout. the body replenishes water and ions during perspiration so the muscles can rest and repair during the cool down period. the water and ions lost through perspiration must be replaced during recovery so the body can replenish fluid and stored energy. the muscles that cause the body to perspire are rested during the recovery period, allowing the body to rebuild water and ion supplies.