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Among adults in the U.S., diets with about 50% carbs were associated with reduced mortality risk, whereas low- and high-carb diets (less than 40% or more than 70%) were associated with higher risk. This risk increased when carbs were replaced by animal fat or protein, and decreased when replaced with plant-based foods.

Climate change may be causing more Tufted puffins to die by starvation in Alaska.

Environment

When one member of a couple commits to losing weight, there is a higher chance that their partner will lose weight as well, regardless of whether they participated in a formal program or in self-guided weight loss.

Although housing discrimination has decreased over the last four decades, ethnic minorities still experience more discrimination when applying to rent than non-minorities. Providing landlords with positive information about an applicant's socio-economic status, as opposed to no information, may reduce discrimination.

Persuasion

Seniors who received free bus passes in England reported greater overall well-being, in part due to less social isolation and more physical activity.

Journal of Transport & Health

In a group of 10 men, cycling with blood flow restriction (BFR) improved muscle antioxidant function and blood flow to the restricted muscle during interval training, leading to greater quadriceps strength than without BFR.

Fitness

Life expectancy is higher in U.S. counties with high population densities and mixed land uses compared to sprawling counties with low population densities and uniform land use.

International Journal of Environmental Research and Public Health

Health

First generation immigrants have lower life satisfaction than locals; however, this improves in the next generation. Socializing improves life satisfaction.

Social Indicators Research

Happiness

Sleeping with an artificial light on at night, such as a lamp or television, was associated with an increased risk of weight gain of at least 11 pounds and obesity in women.

Health
Sleep

In both low- and high-income countries, increasing body-mass index (BMI) between 1987 and 2017 rose faster in rural areas than in cities. This challenges the common belief that the global obesity epidemic is driven primarily by urbanization.