Diet |
- Alcohol
- Chocolate
- Aged cheeses
- Monosodium glutamate
- Aspartame
- Caffeine
- Nuts
- Nitrites, nitrates
|
Hormones |
- Menses
- Ovulation
- Hormone replacement (progesterone)
|
Sensory stimuli |
- Strong light
- Flickering lights
- Odors
- Sounds, noise
- Excessive sun exposure
|
Stress |
- Let-down periods
- Times of intense activity
- Loss or change (death, separation, divorce, job change)
- Moving
- Crisis
|
Changes of environment or habits |
- Weather
- Travel (crossing time zones)
- Seasons
- Altitude
- Schedule changes
- Sleeping patterns
- Dieting
- Skipping meals
- Dehydration
- Irregular physical activity
|