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Articles on Mortality

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Bad air pollution and extreme heat each raise health risks, but they’re worse combined. Brian van der Brug/Los Angeles Times via Getty Images

Extreme heat + air pollution can be deadly, with the health risk together worse than either alone

The worst effects are during high nighttime temperatures, something happening more often with climate change. Wildfires add to the risk.
Research shows that grandparents’ involvement in their grandchildren’s lives plays a critically important role in a child’s overall health and development. Mayur Kakade/Moment via Getty Images

Losing a grandmother can have long-lasting mental health effects for kids and adolescents, a new study finds

Models shows that some 4 million people in the US have lost a grandparent to COVID-19. But until now, there has been a dearth of research into the mental health effects of losing a grandparent.
Joe Biden is the oldest person to be sworn in as US president. New research shows politicians are likely to live longer than the populations they represent. BiksuTong / Shutterstock

Politicians live longer than the populations they represent: new research

The public expects transparency about politicians’ earnings, but it’s not the only area where elite groups have an advantage.
The mortality rate among young adults is higher than it should be, statistically. Sammie Chaffin/Unsplash

Excessive mortality of young adults: a natural trait?

The risk of dying changes over the course of a lifetime. Very high at birth, it falls and then gradually rises again… except for a peak after adolescence. Why such a statistical anomaly?
Biologists and demographers are actively debating whether there is a natural cap on the human life span, and how high that might be. eucyln/iStock via Getty Images Plus

The maximum human life span will likely increase this century, but not by more than a decade

Jeanne Calment of France died in 1997 at the age of 122 years and 164 days. That record will be broken this century, statistical models suggest.
Infection fatality rate is simply the number of deaths divided by the number of infections, but finding those numbers is harder than it might seem. AP Photo/John Minchillo

How deadly is the coronavirus? The true fatality rate is tricky to find, but researchers are getting closer

The percentage of people who die from a coronavirus infection is an important number for public health experts to know. Recent estimates now put it at 0.65%, far lower than initially thought.

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