Category Archives: Science

Why Do We Eat, and Why Do We Gain Weight?

An interesting lunchtime read in The New Yorker.

Our bodies don’t have just a single internal clock that tells us when to sleep and when to wake. Each organ—including the organs related to eating—has a circadian clock of its own, and that clock is sensitive to when, precisely, we eat. If two groups consume the same number of calories but one group eats them during the first part of the day and the other during the second, the latter group is up to two times more likely to be obese. In one study, two groups of people were assigned to eat the same number of calories each day during a twelve-week period. One group received more of them during breakfast, and the other had more during dinner. The breakfast group lost significantly more weight.