| in high doses | 12 | temporal |
| in some people | 11 | other |
| for some people | 8 | other |
| caffeine → cause → insomnia | 213 |
| caffeine → lead to → insomnia | 64 |
| caffeine → contribute to → insomnia | 10 |
| caffeine → be linked to → insomnia | 10 |
| caffeine → increase → insomnia | 9 |
| caffeine → result in → insomnia | 7 |
| caffeine → produce → insomnia | 7 |
| caffeine → be associated with → insomnia | 6 |
| caffeine → have → insomnia | 6 |
| caffeine → trigger → insomnia | 4 |
| caffeine → exacerbate → insomnia | 4 |
| caffeine → worsen → insomnia | 3 |
| caffeine → induce → insomnia | 3 |
| negative | neutral | positive |
| 0.838 | 0.146 | 0.016 |
| Raw frequency | 346 |
| Normalized frequency | 0.790 |
| Modifier score | 0.567 |
| Perplexity | 33.159 |