First aid is the immediate care given to a person who has been injured or is in sudden physical distress. It is important to be prepared to provide first aid in any situation to help save a life. Common first aid techniques include cleaning and bandaging wounds, controlling bleeding, providing CPR, and using a defibrillator. It is important to remain calm and think logically when providing first aid, as every situation is different and may require different techniques. Knowing basic first aid techniques can help to save lives in emergency situations.