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Advent calendars with hidden chocolatey treats, huge tins of Quality Street and steaming cups of hot chocolate festooned with whipped cream and marshmallows are all much-loved wintry staples at Christmastime. But how many of us stop to think about where chocolate actually comes from and how it made its way into our culinary culture?

The story of chocolate has a compelling, rich history that academics like me are learning more about every day.

In 2017, three researchers from the National Research Institute for Agriculture, Food and the Environment (INRAE), Denis Bourguet, Benoit Facon and Thomas Guillemaud, founded Peer Community In (PCI), a peer-review-based service for recommending preprints (referring to the version of an article that a scientist submits to a review committee).

The service greenlights articles and makes them and their reviews, data, codes and scripts available on an open-access basis. Out of this concept, PCI paved the way for researchers to regain control of their review and publishing system in an effort to increase transparency in the knowledge production chain.

If the media, popular entertainment, and retail habits are taken as indicators then the celebration of Christmas is no longer just the reserve of Christians. This has some consequences for the religious and non-religious alike.

In popular culture and the media, Christmas is portrayed as a time of happiness, togetherness, generosity, and peace. In the “made for Christmas” movies, such as those on the popular Hallmark Channel, a “feel good” message is the order of the day.

In the waning hours of the year’s biggest climate change conference – COP27 – we learned of a deal to create a loss and damage fund. This is essentially a source of finance to compensate poor countries for the pain they are incurring because of climate change. An often-cited example of such suffering is the ongoing drought in the Horn of Africa region, which has put some 22 million people at risk of severe hunger.

Imagine that a soldier has a tiny computer device injected into their bloodstream that can be guided with a magnet to specific regions of their brain. With training, the soldier could then control weapon systems thousands of miles away using their thoughts alone. Embedding a similar type of computer in a soldier’s brain could suppress their fear and anxiety, allowing them to carry out combat missions more efficiently.

A recently published study in a high-profile medical journal appeared to call into question the efficacy of colonoscopy, a proven and widely utilized strategy for the screening and prevention of colorectal cancer.