Last weekend, the German states of Thuringia and Saxony elected representatives to their parliaments. In the former, the far-right Alternative for Germany (AfD) won the elections outright. In the latter, the AfD got 30% of the vote.

Gonçalo Pina of ESCP Business School analyses how certain issues in regions such as Thuringia and Saxony may have their roots in German reunification. From unemployment rates and voter participation to the number of millionaires, economic and social statistics reveal an enduring phantom border between East and West.

With the return to school and work in Europe, some of us might wonder why we’ve forgotten things that were at the forefront of our minds just before the holidays. Two researchers explain why this is the case, and also how to “improve” our memory so we can recall the things that are important.

And let’s talk about dirt. The ground in which vegetables grow – but also the soil we walk on or dig our hands into. Healthy soil leads to healthy microbiota and better mental health. It turns out that one of the best ways to take care of ourselves is to take care of our soils.

Claudia Lorenzo Rubiera

Editor, Madrid

Why German reunification is still a good idea

Gonçalo Pina, ESCP Business School

Thirty years after German reunification, large differences persist between East and West. Although these disparities are concerning, it’s crucial to put them into perspective. Nothing is definitive yet.

How to improve your memory: strategies for kids and adults

Claudia Poch, Universidad Nebrija; Jorge González Alonso, Universidad Nebrija

Human memory can be trained, but we need different techniques for different kinds of information.

Healthy soils are good for your gut, brain and wellbeing – here’s why

Jose David Henao Casas, Vrije Universiteit Amsterdam

From improving our gut microbiome to brain function, healthy and nutritious soil has lots of human health benefits.

Puny chocolate bars and miniature crisps: is ‘shrinkflation’ the worst business practice ever?

Monica Grosso, EM Lyon Business School; Diletta Acuti, University of Bath; Marta Pizzetti, EM Lyon Business School

Consumers would rather see the prices of their favourite products go up than have them resemble knockoffs.