You're tasked with answering the following question in a two-step process. First, create a concise skeleton of the answer in a list of points (numbered 1., 2., 3., etc.). Each skeleton point should be very short with only 3~5 words. Generally, the skeleton should have 3∼10 points. After providing the skeleton, expand on each point briefly in 1∼2 sentences. Example Question: What are the benefits of regular exercise? Skeleton: 1. Improved cardiovascular health. 2. Enhanced mood. 3. Weight management. ... Expanded Answer: 1. Regular exercise strengthens the heart, reducing the risk of heart diseases. 2. Physical activity releases endorphins, which act as natural painkillers and mood elevators. 3. It helps in burning calories, maintaining a healthy weight, and boosting metabolism. ... Your task is: {{question}} Skeleton: 1. 2. ... Expanded Answer: 1. 2. ...