Q.I had a blood test for food allergens, cut them out, and my migraines were greatly diminished in frequency and intensity.
我做过食物过敏原的血液测试。 避免食用这些导致过敏的食物，我偏头痛发生的频率和强度大大的减轻了。
2
Meanwhile, there is an upper limit existing in frequency and the peak power of response will be greatly diminished only when the frequency exceeds its critical value.