Advice for telling the difference between medical fact and fiction.

Advice for telling the difference between medical fact and fiction.

One day last summer Antonia Prescott was scrolling the internet when she saw an article with a headline that intrigued her.

“Harvard professor names best exercise to burn fat and keep it off: Dr. Daniel E. Lieberman has explained what type of exercise and for how long a week people should be doing it for best results,” it said.

Curious, Prescott, turned to her husband, who was doing the dishes nearby and asked him what type of exercise people should do to burn fat and keep it off.

“That’s really complicated. I can’t answer that,” responded her husband, who happens to be Daniel E. Lieberman, a professor at Harvard, who never provided such guidance to anyone.