Living under constant stress leads to reduced productivity and less happiness. We tend to fight this problem only after it has already affected us both emotionally and professionally. Swedes, on the other hand, fight stress before it starts. They don't wait to get ill and ask for sick leave from work. Still, they take regular breaks and do regular exercise instead to avoid coming to this point. Finding a balance between work and life is the key to preventing anxiety, depression, burnout syndrome, and less productivity at work, so take time for yourself.
Check this video out for excellent and unusual tips on applying Lagom for health (minutes 11:17 to 13:33), such as taking a half-day off from work when you're feeling absolutely fine to prevent stress.