Coffee contains more caffeine, caffeine has a certain role in expanding cerebral blood vessels, cerebral blood vessel expansion, spasm will cause headache, nausea. If symptoms occur, you need to take the following measures: 1, stop working and pay attention to rest, massage your head, especially the temples on both sides, and drink warm water to promote the metabolism of coffee. 2, listen to soothing music, and open the window to ventilate the room appropriately. 3, headache is obvious, and when the above measures are ineffective, you need to take oral pain relievers, such as ibuprofen and acetaminophen tablets. If oral painkillers are still obvious headache, nausea, need to actively find other reasons to the hospital. Usually drink coffee often prone to headaches, it is recommended to try not to drink, if it is easy to work, study fatigue need to refreshing, you can drink light tea water, usually maintain a good work and rest and eating habits.