The system will automatically recover. When the physical strength is insufficient, the system will automatically recover 1 point physical strength within five minutes until reaching the upper limit of physical strength. Game activities, Shan Zhi kitchen activities will provide physical strength for players with insufficient physical strength. From 12 to 13, 15 to 16, 18 to 19, you can gain 30 points of physical strength every day from 22: 00 to 23: 00. Friends give it to encourage players to interact, so friends can give each other physical strength. Level upgrade, every time the pirate group level upgrade, the system will give away some physical strength.