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The Economist
8 Jan 2025
Science & technology | Well informed
Does melatonin work for jet lag?
It can help. But it depends where you’re going
Drop into any pharmacy in America and you will find jars of melatonin promising to relieve you of dreaded jet lag. There are tablets, pink gummies, potent-looking capsules—whatever appeals. But all you want to know is: does it work?
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Training AI models might not need enormous data centres
Eventually, models could be trained without any dedicated hardware at all
How the Gulf’s rulers want to harness the power of science
A stronger R&D base, they hope, will transform their countries’ economies. Will their plan work?
Cancer vaccines are showing promise at last
Trials are under way against skin, brain and lung tumours
New firefighting tech is being trialled in Sardinia’s ancient forests
It could sniff out blazes long before they spread out of control
Can Jeff Bezos match Elon Musk in space?
After 25 years, Blue Origin finally heads to orbit, and hopes to become a contender in the private space race
Why some doctors are reassessing hypnosis
There is growing evidence that it can help with pain, depression and more