Did Neanderthals use rhinoceros teeth as tools?

The long-awaited, well-deserved holiday season has finally arrived for millions of employees. However, after months of non-stop work, truly unplugging can become incredibly difficult. Modern workplaces demand a state of constant mental availability. Driven by rapid technological advances, we find ourselves endlessly tied to work through group chats, social media, and e-mails, making total disconnection a challenge. This technological complexity is also associated with greater emotional exhaustion at work and in our personal lives. Along with daily and weekly breaks between shifts, annual leave periods are designed to be one of the most effective tools for essential rest and recovery. Research consistently shows that time away from work can improve wellbeing, reduce exhaustion and support recovery. It actively lowers stress, improves sleep quality, and reduces the risk of chronic illness. The stakes are

Derrière une simple tablette de chocolat se cache une mécanique d’une grande précision. SviatlanaLaza/Shutterstock (no reuse) L’ESSENTIEL Le chocolat fond facilement, car son point de fusion est proche de la température du corps humain. Les chercheurs développent des chocolats capables de résister jusqu’à 45 °C. Le défi est de préserver leur goût, leur texture et leur fondant en bou