| according to a new study | 3 | other |
| insomnia → be in → gene | 5 |
| insomnia → be → hereditary | 4 |
| insomnia → be → genetic | 4 |
| insomnia → be → inherited | 4 |
| negative | neutral | positive |
| 0.367 | 0.565 | 0.068 |
| Raw frequency | 17 |
| Normalized frequency | 0.370 |
| Modifier score | 0.500 |
| Perplexity | 35.014 |