In sports like football (soccer), basketball, and hockey, games typically consist of two halves. These halves allow teams to regroup and strategize, providing a structured format for competition. Each half generally lasts for a defined period, enhancing the pace and intensity of the game. For example, in football, each half runs for 45 minutes, while in basketball, the game is divided into two 20-minute halves or four quarters depending on the league. This structure contributes to the flow and dynamics of team sports.