| caffeine → Causes → insomnia | 0.44 | |
| caffeine → Causes → headache | 0.39 | |
| caffeine → Causes → anxiety | 0.32 | |
| caffeine → Causes → nervousness | 0.31 | |
| caffeine → Causes → nausea | 0.29 | |
| caffeine → Causes → dehydration | 0.25 | |
| caffeine → Causes → irritability | 0.25 | |
| caffeine → Causes → restlessness | 0.17 | |
| caffeine → Causes → difficulty | 0.16 | |
| caffeine → Causes → heartburn | 0.16 | |
| caffeine → Causes → tremor | 0.16 |