A new international study links climate change to a global increase in antibiotic-resistance genes in Salmonella, adding a new dimension to an already critical public health threat.
Higher temperatures promote the spread of antibiotic-resistance genes in Salmonella bacteria.
Antimicrobial resistance is already one of the gravest threats to global public health.
Without coordinated climate and health policies, resistant infections will become harder to control.
The largest sleep study to date finds that sleeping more than eight hours is linked to faster biological aging, suggesting the optimal duration lies just below the long-held standard.
Sleeping more than eight hours per night is linked to faster biological aging.
The study is the largest of its kind, covering 500,000 participants.
Optimal sleep duration falls below eight hours but varies by individual.
At the dawn of the 20th century, Russian diplomacy carefully manoeuvred Balkan states to consolidate its influence as the Ottoman Empire slowly collapsed.
Russia backed Serbia diplomatically to turn it against Austria-Hungary.
The Balkans became the main arena of rivalry after the Ottoman Empire's decline.
Great-power manoeuvring accelerated the path to the First World War.
Leucippus and Democritus theorised that all matter consists of indivisible particles long before any instrument existed to prove it — a philosophical leap confirmed by modern physics only in the 20th century.
Leucippus and Democritus proposed atomic theory in the 5th century BC, with no experimental basis.
The idea survived through Epicurus and Lucretius, shaping Renaissance science.
Modern physics confirmed atoms in the early 20th century, though their structure proved more complex.