Why do older people heal more slowly?

Healing is a complicated process. As people age, higher rates of disease and the fact that old cells lose the ability to divide slow this process down.

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health science aging immune-response living-longer-2020 cells infections living-longer injury curiosity healing cuts

Wildfires force thousands to evacuate near Los Angeles: Here's how the 2020 Western fire season got so extreme

The 2020 wildfire season has shattered records across the West. It's a trend that's headed in a dangerous direction.

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climate-change climate science heat-wave drought natural-disasters wildfires weather

Steroids cut COVID-19 death rates, but not for everyone – here’s who benefits and who doesn’t

Three new studies show corticosteroids can reduce deaths in critically ill COVID-19 patients. But what about other patients?

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medicine covid-19 coronavirus immune-system biology pandemic science hospitals research icu medication steroids

Reopening elementary schools carries less COVID-19 risk than high schools – but that doesn't guarantee safety

New research points to why reopening elementary schools is the safest bet and what else needs to happen for schools to have the best chance of staying open.

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education health covid-19 coronavirus schools pandemic science high-school k-12-education mathematical-models teachers k-12-online-learning elementary-schools

Kids are bigger coronavirus spreaders than many doctors realized – here’s how schools can lower the risk

Checking for symptoms is just the beginning. Here are 10 ways schools can help keep children, families and faculty safe.

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education health teaching covid-19 coronavirus schools pandemic science online-learning social-distancing research virtual-learning

Forensic breakthrough helps explain how innocent people's clothing fibres could end up at crime scenes

New research shows fibres can transfer between people without any contact.

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crime science forensic-science crime-scene-investigation crime-scene

Insect apocalypse? Not so fast, at least in North America

Recent reports of dramatic declines in insect populations have sparked concern about an 'insect apocalypse.' But a new analysis of data from sites across North America suggests the case isn't proven.

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biodiversity insects science extinction ecology research biodiversity-loss publication-bias scholarship

Don't blame cats for destroying wildlife – shaky logic is leading to moral panic

Framing cats as responsible for declines in biodiversity is based on faulty scientific logic and fails to account for the real culprit – human activity.

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conservation biodiversity birds ethics mice science australia rats cats sixth-mass-extinction conservation-biology logic justice moral-panic predator compassion apex-predators habitat-degradation

UK science thrives on international collaboration but faces an uncertain future

We can’t tackle the huge global challenges we face in isolation – scientists must be able to work together across borders.

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covid-19 european-union-eu science research