Here's a roundup of five medical studies published this week that might give you new insights into your health, mind and body. Remember, correlation is not causation – so if a study finds a link between two things, it doesn't mean that one causes the other.

Missing this gene? Carbs may be your weight-loss nemesis
Journal: Nature Genetics

Depending on who you ask (and the diet trend of the week), carbohydrates can be your best friend or worst enemy when it comes to losing weight. New research suggests the truth may lie in our genes.
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