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Remember when low-fat diets were the rage? Now fats — or some of them, anyway — are considered crucial to a healthy diet. The fact is that recent years have seen dramatic changes in which foods dietary science considers good for you and which it doesn’t.

It was 34 years ago, in 1981, that the first patients of HIV were identified. Even now, there remain more than 36 million people worldwide living with HIV. In 2014, 1.2 million people died from AIDS-related illnesses. Three 51³Ô¹ÏºÚÁÏ research professors, each manning a different front — from educational memoirs to life-saving baby showers to a possible cure — continue to make headway in this worldwide battle.

Researchers at the University of Nevada, Las Vegas say nearly one-third of the state's kindergarteners are overweight or obese.