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Around the world 55 million people live with dementia. Researchers are still looking for answers on what causes it and how to treat it. Science Photo Library/Alamy Stock Photo

Unlocking new clues to how dementia and Alzheimer’s work in the brain – Uncharted Brain podcast series

The world’s longest running cohort study reveals risk factors for dementia. Families of athletes with early-onset dementia tell their stories. Could viruses cause Alzheimer’s? Listen to the Uncharted Brain: Decoding Dementia podcast series.
AAP Image/Dan Peled

Megadroughts helped topple ancient empires. We’ve found their traces in Australia’s past, and expect more to come

New research shows Australia experienced a number of megadroughts in the last 1,000 years, We may be underestimating the severity of drought in Australia’s future.
Fossilised jaws from the 17 million-year-old Kenyan ape Afropithecus turkanensis. Tanya M. Smith/National Museums of Kenya

Revelations from 17-million-year-old ape teeth could lead to new insights on early human evolution

Cutting-edge analysis of fossil ape teeth reveals ancient seasonal change in Africa, long before human ancestors appeared. The method will be crucial for the future study of early hominins.
You might make a quick and exaggerated judgment about what kind of neighborhood you’re in based on the people or flags you see. David Levingstone/DigitalVision via Getty Images

People overestimate groups they find threatening – when ‘sizing up’ others, bias sneaks in

Social psychology researchers found that people commonly exaggerate the presence of certain groups – including ethnic and sexual minorities – because they perceive them as ideologically threatening.
La ville de Tombouctou et sa région (actuel nord Mali) ont longtemps été au coeur de la circulation des savoirs. Vue sur une dune et un habitant Touareg en 2005. François Xavier Marit/ AFP

L’humanité n’est pas une simple juxtaposition de tribus

Personne ne peut se réclamer propriétaire d'un savoir: les connaissances circulent, ont une histoire et des géographies multiples qui contribuent à penser une humanité dans sa globalité.
Health-care workers protest over stalled contract negotiations with the provincial government in Montréal in October 2020. THE CANADIAN PRESS/Paul Chiasson

Workers, not warriors: 4 lessons from health worker protests during COVID-19 that could help avert a looming workforce crisis

To prevent a shortage of health workers, public expressions of appreciation need to be backed by policies that provide dignity, decent working conditions, accountability and appropriate remuneration.
Building solar panels over water sources is one way to both provide power and reduce evaporation in drought-troubled regions. Robin Raj, Citizen Group & Solar Aquagrid

These energy innovations could transform how we mitigate climate change, and save money in the process – 5 essential reads

From pulling carbon dioxide out of the air to turning water into fuel, innovators are developing new technologies and pairing existing ones to help slow global warming.

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