Candidate review

{
  "query": "brain freeze cold drink headache why science short",
  "selected_video": {
    "id": {
      "kind": "youtube#video",
      "videoId": "-an3XGZ5WEQ"
    },
    "etag": "JLJCmlsc6Me188J9CQvTb3eq5ps",
    "kind": "youtube#searchResult",
    "snippet": {
      "title": "Why Do We Get Brain Freeze from Cold Drinks? | The Science Explained",
      "channelId": "UC32dbxO7XSy2ZniG0rcig5w",
      "thumbnails": {
        "high": {
          "url": "https://i.ytimg.com/vi/-an3XGZ5WEQ/hqdefault.jpg",
          "width": 480,
          "height": 360
        },
        "maxres": {
          "url": "https://i.ytimg.com/vi/-an3XGZ5WEQ/maxresdefault.jpg",
          "width": 1280,
          "height": 720
        },
        "medium": {
          "url": "https://i.ytimg.com/vi/-an3XGZ5WEQ/mqdefault.jpg",
          "width": 320,
          "height": 180
        },
        "default": {
          "url": "https://i.ytimg.com/vi/-an3XGZ5WEQ/default.jpg",
          "width": 120,
          "height": 90
        },
        "standard": {
          "url": "https://i.ytimg.com/vi/-an3XGZ5WEQ/sddefault.jpg",
          "width": 640,
          "height": 480
        }
      },
      "description": "Have you ever taken a big bite of ice cream or sipped a freezing drink only to feel that sudden stabbing headache? This is ...",
      "publishTime": "2025-08-20T20:00:00Z",
      "publishedAt": "2025-08-20T20:00:00Z",
      "channelTitle": "MindSphere",
      "liveBroadcastContent": "none"
    }
  },
  "selection_reason": "Source example for next-week Dr Hipótesis topic search using learned channel rules."
}