Chokes, or suffocation, occur when the airway is blocked, preventing air from reaching the lungs. This can happen due to various reasons, such as food, objects, or even swelling in the throat. When the airway is obstructed, a person may struggle to breathe, leading to a lack of oxygen in the body. If not addressed quickly, choking can result in serious health issues, including brain damage or death. The Heimlich maneuver is a common first aid technique used to help someone who is choking. It involves applying pressure to the abdomen to dislodge the object causing the blockage.