Dietary guidelines tell us what we should eat for good health, but at the moment it is possible to follow the guidelines and still eat predominantly ultraprocessed foods.  A new study has looked at the impact this has on your health, and compared it to a minimally processed diet chock full of whole foods.  Also, there are calls to change the criteria for diagnosing perimenopause. And the benefits of psilocybin for depression might have been overstated.