2.2 billion people — one-third of the world's population — are obese or overweight, according to a study published in The New England Journal of Medicine. The study, which used data from the most recent Global Burden of Disease study, spanned 35 years and 195 countries, providing a new level of granularity concerning the world's biggest public health crisis:

Key takeaways:

  • Look up: Our visualization of the study's data shows the change in obesity rates for adults from 1980 to 2015, broken down by sociodemographics, and the takeaway is clear: except for a few outliers, the proportion of populations that are obese or overweight is increasing — especially in more developed countries.
  • The visible trend: As the level of a country's development increased so did the prevalence of obesity in men but for women, there was a larger increase in countries with a lower sociodemographic index.
  • Another big thing: The study showed that while fewer children are obese as a percentage of the population (5%) compared to adults (12%), the rates of childhood obesity are increasing much more rapidly in many places, presenting a health risk for the future.
  • Possible causes: Increased accessibility to energy-dense foods and a marked global increase in urbanization that can reduce chances for physical activity, though the authors note a shift to urban-living happened before the global increase in obesity.
  • The impact: The study looked at the effects of high body mass index and its myriad physical impacts over 25 years, finding that 7.1% of deaths worldwide in 2015 could be directly attributed to excess weight. That rate jumped 28.3% from 1990 to 2015. Unsurprisingly, it also contributed to a massive spike in years of life lost to disability and related diseases.
  • Worth considering: Nearly 40% of the 4 million deaths in 2015 linked to excess body weight occurred among people who weren't yet classified as obese, showing that simply being overweight can be a serious health risk.

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Updated 6 mins ago - Politics & Policy

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Illustration: Aïda Amer/Axios

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  4. Public health: Four former CDC heads say Trump's undermining of agency puts lives at risk — CDC director: U.S. could get coronavirus "under control" in 4–8 weeks if all wear masks.

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Why it matters: The cumulative $28 billion in loan loss provisions that banks have so far announced they’re reserving serves as a signal they’re preparing for a colossal wave of loan defaults as the economy slogs through a coronavirus-driven downturn.

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Why it matters: The phase one trial is still small and does not definitively determine how effective the vaccine is. But Anthony Fauci of the National Institutes of Health, which is running the trial, told the Wall Street Journal that these data make it "pretty clear that this vaccine is capable of inducing quite good [levels] of neutralizing antibodies."