Get a life! Facebook is bad for you

Using the social network seems to make people more miserable

Those who have resisted the urge to join Facebook will surely feel vindicated when they read the latest research. A study just published by the Public Library of Science, conducted by Ethan Kross of the University of Michigan and Philippe Verduyn of Leuven University in Belgium, has shown that the more someone uses Facebook, the less satisfied he is with life.

Past investigations have found that using Facebook is associated with jealousy, social tension, isolation and depression. But these studies have all been “cross-sectional”—in other words, snapshots in time. As such, they risk confusing correlation with causation: perhaps those who spend more time on social media are more prone to negative emotions in the first place. The study conducted by Dr Kross and Dr Verduyn is the first to follow Facebook users for an extended period, to track how their emotions change.

Changes in fish market that may change your diet

Fish are getting more expensive, but they do not all move at the same speed

IT IS a good time to be a fisherman. The global fish-price index of the UN’s Food and Agricultural Organisation (FAO) hit a record high in May. Changing consumer diets, particularly in China, explain much of the sustained upward movement. High oil prices, which increase the cost of fishing and transportation, also add to the price of putting fish on the table.

Not all fish are created equal, however.