Why Does Headache Increase in Summer?

Dr. Pavel Khorushiev, a neurology specialist, announced that some people experience an increase in headaches during the summer compared to other seasons. The specialist notes in a conversation with Sputnik Radio that many suffer from headaches in summer, which is linked to excessive sweating leading to dehydration. He explains, "The most common and practical cause of headaches in summer is a lack of water, which results in poor blood fluidity and consequently poor blood flow to all organs, including the brain, which consumes a tremendous amount of energy. For this reason, a person experiences headaches. I wouldn't exaggerate if I said that 90 percent of headaches in summer are caused by not drinking enough water." He adds that a healthy person in the summer needs to drink 2-2.5 liters of water per day. However, there are medical conditions that prevent drinking large amounts of water. He states, "In summer, one should drink 2-2.5 liters of water per day, and in winter 1.5-2 liters per day, unless there are contraindications such as kidney or heart dysfunction. Another exceptional case is when a person suffers from ascites, which is the accumulation of a large amount of fluid in the abdominal cavity. Of course, everyone has a small amount of fluid there (30-100 milliliters), but due to certain diseases, especially liver diseases, this amount can increase, sometimes reaching several liters. In this case, these individuals cannot drink large amounts of water. But if everything is fine, then drinking 2-2.5 liters of water in summer will make summer headaches just a memory for many."