«Nicht alles, was zählbar ist, zählt, und nicht alles, was zählt, ist zählbar». Albert Einstein

The genes lay the foundation, the environment determines the disease

Modern technology allows us to investigate mental disorders with regard to their genotype in more detail through worldwide „cross disorder“ cohort studies, the so-called „genome wide association studies“ (GWAS). However, gene-environment interaction analyses as additional disease-causing factors are not taken into account.