Constipation is a common problem characterized by infrequent and difficult bowel movements. Increasing fluid intake is often recommended as part of treatment protocols, and there is some evidence to support this. Increasing fluid intake can help reduce constipation. Mineral water is a particularly beneficial drink for people with constipation. Studies have shown that mineral waters rich in magnesium and sodium improve the frequency and consistency of bowel movements in people with constipation. Dehydration causes headaches and migraines in some people. Research shows that headaches are one of the most common symptoms of dehydration. Additionally, some studies have shown that drinking water can help relieve headaches in people with frequent headaches. A study of 102 men found that when he drank an additional 50.7 ounces (1.5 liters) of water per day, her migraine-specific quality of life scale, a migraine symptom rating system, significantly improved. It turns out that additionally, 47% of men who drank more water reported an improvement in headaches, whereas only 25% of men in the control group reported this effect. Rather, researchers believe that due to the lack of high-quality research, more is needed to see how increased water intake can help improve headache symptoms and reduce headache frequency. It concludes that more research is needed. This is especially important during strenuous exercise or in very hot weather. Dehydration has a noticeable effect when only 2% of the body's water volume is lost. However, it is not uncommon for athletes to lose up to 6-10% of their water weight through sweating. This can lead to altered thermoregulation, decreased motivation, and increased fatigue. It can also make your workout feel more challenging, both physically and mentally. Optimal hydration has been shown to prevent this, reducing the oxidative stress that occurs during high intensity exercise. It may even provide relief. This is not surprising given that about 80% of muscle is water. About 60% of the human body is composed of water. In general, we recommend drinking eight 8 ounces (237 mL) glasses of water per day (the 8 x 8 rule). There's little science behind this particular rule, but staying hydrated is important. The cartilage found in the joints and discs of the spine contains approximately 80% water. Long-term dehydration can reduce the ability of joints to absorb shock, leading to joint pain. Saliva helps digest food and keeps your mouth, nose, and eyes moist. This will prevent friction and damage. Also, drinking water helps keep your mouth clean. If you drink it instead of sweet drinks, it will also prevent tooth decay. Blood is over 90% water, and blood carries oxygen to different parts of the body. Moisture stored in the middle layer of the skin rises to the surface of the skin as sweat when the body temperature rises. Some scientists suggest that too little water in the body increases heat retention, making a person unable to withstand heat stress. Fluid loss is exacerbated by warm weather, strenuous exercise, high altitude, and older people who do not feel thirsty.