Sleep more to lose weight? Read this before

Before this piece of research gets out of hand due to shoddy science journalism, it does not conclude that people should sleep longer to lose weight. The paper is titled "Insufficient sleep undermines dietary efforts to reduce adiposity", which means that if you are person dieting to lose fat then sleeping less will undermine your efforts.

The study compares a group of 10 who were dieting, 6 persons slept for 8.5 hours every night for two weeks and similarly, 4 persons slept for 5.5 hours every night for two weeks. And this was repeated on the same subjects after three months. It was seen that the persons who slept less lost less body-fat more fat-free body mass (such as proteins). In the subjects who lost more fat-free body mass they observed increased hunger, which under normal circumstances, will undermine the efforts of a person dieting.

The conclusion is very clear

Patients attempting to lose weight should consider getting adequate amounts of sleep in addition to limiting calorie intake to ensure that they retain lean muscle mass and lose fat.

The conclusion is NOT what The Seattle Times or Los Angeles Times says:

Moral of the study? Put aside the work, or that late-night TV show, and get some shut-eye. Compared to exercise and diet, it's the easiest part of healthy weight loss.

Also remember the limitations of the study

All were nonsmokers aged 35 to 49 years, and none were morbidly obese. Patients were followed for only 2 periods of 2 weeks each, much less than the average amount of time people would usually spend on a calorie-restriction program

Nedeltcheva AV, Kilkus JM, Imperial J, Schoeller DA, & Penev PD (2010). Insufficient sleep undermines dietary efforts to reduce adiposity. Annals of internal medicine, 153 (7), 435-41 PMID: 20921542

Have we solved all the questions in chemistry?

If the polymath Charles Babbage was alive, I don’t think he would have said this: ‘With completion of the periodic table, though, and with modern understanding of chemical bonds as quantum phenomena caused by the pairing of electrons of opposite spins, chemistry as an intellectual discipline looks, to the outsider at least, to have been largely solved.’ But the Babbage from the Economist certainly seems to think so.

Err…I beg to differ and so will the millions of chemist who do research...read more.

Why I should be made the Chief Editor of Chemistry World

The celebration of science occurs annually with the announcement of the Nobel prizes. This is the time when science gets a lot of media coverage and scientists who have made a great impact on human lives are given their due recognition. At about the same time there is also a celebration of geeky humour that happens annually. It’s when the Annals of Improbable Research holds a party at Harvard University where real Nobel prize winners award the Ig Nobel prizes. These prizes are given to discoveries or inventions “that cannot, or should not, be reproduced”...read more