Interview: lower back pain – what can you do about it?
Guide
by Ronja Magdziak
German books
Why don’t we cancel when plan prices go up?
Background information
by Martin Jungfer
Strong bum, strong back – why your glutes are more important than you think
Background information
by Anna Sandner
Questions raised over new products with apparent signs of use
Behind the scenes
by Daniel Borchers
These are our flop products for 2025
Background information
by Samuel Buchmann
