|
If you luxuriate in long stretches of sleep, here’s some science that might keep you up at night: too many hours may be as bad for you as too few. The evidence suggests a U-shaped relationship between health and sleep duration, with an optimal middle range. Reassuringly, there is more to sleep than simple duration.
Since February, European oil majors have outperformed their American cousins. BP, Shell and TotalEnergies excel at making money from trading hydrocarbons. These activities are secretive: information about majors’ trading arms is, in effect, classified, but The Economist spoke to a range of industry insiders. Our findings indicate that the golden geese still have eggs to lay. | 
