| due to to be able | 31 | cause |
| related to other medical problems | 10 | other |
| due to anxiety | 6 | cause |
| insomnia → be → caused | 115 |
| insomnia → can → cause | 16 |
| insomnia → be → cause | 9 |
| insomnia → have → many causes | 9 |
| insomnia → cause many of → condition | 6 |
| insomnia → have → various causes | 5 |
| insomnia → cause as → result | 3 |
| insomnia → have → different causes | 3 |
| negative | neutral | positive |
| 0.729 | 0.251 | 0.020 |
| Raw frequency | 166 |
| Normalized frequency | 0.856 |
| Modifier score | 0.813 |
| Perplexity | 306.522 |