Which of the following is a common trigger for migraines?

Excessive coffee consumption is recognized as a common trigger for migraines due to its caffeine content, which can lead to changes in blood vessel dilation and other physiological responses in susceptible individuals. Caffeine intake can have a dual effect; for some people, it may help alleviate symptoms if consumed in moderation, while excessive amounts can result in withdrawal headaches or exacerbate the frequency and severity of migraines.

In contrast, daily exercise is generally considered beneficial for overall health and may even help reduce the frequency of migraines for some individuals. Proper hydration is essential for maintaining health and often helps prevent headaches, including migraines. Regular meals can also help stabilize blood sugar levels, which can prevent migraine attacks rather than trigger them. Thus, while the other options support a healthier lifestyle and migraine management, excessive coffee consumption stands out as a specific factor that can trigger migraine episodes.