A study by the National Headache Foundation found that 30 percent of headache cases are related to eating the wrong diet, according to Reader’s Digest magazine. The following are a few causes of headache problems that are easily overlooked: 1. Hunger headaches: Inadequate caloric intake can lead to hunger headaches. Do not eat too long between meals, preferably every four hours, such as eating some almonds, cookies, etc. 2. Thirst headache: Dehydration is a major trigger of headache. Experts suspect that dehydration causes the blood vessels in the brain to narrow, reducing the supply of blood and oxygen to the brain. When the brain feels thirsty, the body is already in a dehydrated state. You can drink more soup at each meal and rehydrate from time to time after the meal. 3, sweetener headache: According to a study by the University of Washington, some people are particularly sensitive to aspartame and can induce headaches as a result. People who like to eat artificial sweetener foods can keep a diary to observe the symptoms. In addition, honey can be used instead of sweeteners. 4, caffeine headache: According to CNN Health, 50% of people who have the habit of drinking coffee suddenly do not drink coffee after a series of symptoms such as headaches. Caffeine intake should be reduced gradually, and dieters can drink one caffeinated beverage a day. 5, ice cream headache: Harvard Medical School researchers pointed out that eating ice cream can also induce headaches. Researchers found that eating ice cream will stimulate the brain to increase blood flow, thus creating additional pressure in the brain shell, leading to headache symptoms. 6. Exercise headache: If you have just joined the exercise family and are pushing too hard, then you are likely to experience an exercise headache. Symptoms usually appear after exercise. Experts at the Mayo Clinic recommend doing a warm-up before exercise and not forcing yourself to overexert yourself. 7, stress headache: the body under stress may release cortisol and other hormones to constrict blood vessels in the brain, resulting in headaches. Work under pressure can temporarily get out of the office to do some deep breathing, you can also do some relaxation exercises, such as trimming nails, call a friend.