Unlocked! For one week all articles on newscientist.com are free to read – including this selection of our most popular articles ever.
A to zinc: What supplements are worth taking?
Vitamins, minerals, fish oils… the list of nutritional supplements you can buy keeps growing. Some are worth it, some aren’t. We sift the evidence for you
Not just a headache: How migraine changes your brain
Migraine changes the way you experience the world all the time, not just during an attack. It’s time for a new approach to treatment
The greatest physics theorem you’ve never heard of
This concept’s played a greater part in physics than relativity and quantum theory, so why has the great woman behind it not achieved Einstein’s fame?
End of nations: Is there an alternative to countries?
Nation states cause some of our biggest problems, from civil war to climate inaction. Science suggests there are better ways to run a planet
Fixing broken brains: a new understanding of depression
Untreatable depression is on the rise, hinting at fundamental flaws in our understanding of the illness. But new treatments offer hope for everyone