Table 1.
Headache trigger perceptions.
| Name | Frequency of encounter (days/month) | Perception of strength (0–100% chance of headache) |
|---|---|---|
| Stress | 15 (10,25) | 75 (50,90) |
| Missing a meal | 5 (2,10) | 60 (30,90) |
| Dehydration | 2 (0,5) | 60 (30,90) |
| Using a computer for a long time | 20 (10,30) | 50 (20,75) |
| Bright lights | 10 (4,20) | 50 (20,75) |
| Not getting enough sleep | 12 (5,20) | 50 (30,80) |
| Neck pain | 6 (3,15) | 50 (20,90) |
| Strong perfume or cologne | 5 (2,10) | 50 (10,80] |
| Weather changes | 10 (5,19.5) | 40 (5,75) |
| Pollen | 15 (5,25) | 35 (1.5,75) |
| Bright sunlight | 15 (10,20.75) | 30 (10,60) |
| Cigarette smoke | 5 (1,15) | 30 (0,75) |
| Loud noise | 5 (2,15) | 30 (5,58.75) |
| Auto exhaust | 8 (2,20) | 25 (5,60) |
| Temperature change in your surroundings | 10 (4,20) | 22.5 (0,50) |
| Air pollution | 5 (1,20) | 20 (0,50) |
| Aerosol sprays | 5 (1,17) | 15 (0,50) |
| Gasoline odor | 4 (3,6) | 10 (0,40) |
| Heavy exercise | 4 (0,10) | 10 (0,50) |
| MSG | 2 (1,5) | 10 (0,50) |
| Caffeine | 30 (10,30) | 5 (0,26.25) |
| Red wine | 0 (0,1) | 4 (0,50) |
| Processed meats | 5 (2.5,15) | 2 (0,25) |
| Air conditioning | 30 (15,30) | 0 (0,10) |
| Artificial sweeteners | 2 (0,19) | 0 (0,25) |
| Cheese | 15 (5,20) | 0 (0,5) |
| Chocolate | 10 (4,20) | 0 (0,10) |
| Cinnamon | 2.5 (1,7.75) | 0 (0,0) |
| Fruit | 20 (15,30) | 0 (0,0) |
| Hormonal birth control | 0 (0,0) | 0 (0,25) |
| Nuts | 7 (3,15) | 0 (0,0.5) |
| Salty foods | 15 (5,20) | 0 (0,20) |
| The color green | 30 (20,30) | 0 (0,0) |