San Francisco, Honolulu, and Seattle emerged from a list of 182 large cities in the United States as the most healthiest, according to a new list compiled by the personal finance website WalletHub. Based on 41 key metrics in four main categories —  health care, food, fitness, and green spaces — the ranking relies on a dataset that ranges from the cost of a medical visit to fruit and vegetable consumption to a city’s share of physically active adults.