Dehydration makes you feel tired because your metabolism and toxins are not discharged from the body. Water plays a role in everything that the body works, from regulating body temperature, transporting oxygen, transporting immune substances, preventing aging, and maintaining skin elasticity. Since 60-70% of our body consists of water, water is necessary to sustain life. So, how much water should you drink per day? According to the World Health Organization(WHO), the recommended daily intake of water is 1.5 to 2 liters, which is about 8 to 10 glasses of water. How about choosing healthy and tasty water through water purified with the GNB inline Alkaline Hydrogen water filter?