Even though most people know that they should drink “plenty” of water every day, few people follow it. In fact, most people don’t even know how much is “plenty.”. If you want to gain muscle weight fast, it’s a priority for you to remain hydrated. The second most important element for life is water, after oxygen. The human body cannot survive for even a few days without water, while it can go for weeks without food. Our bodies are 80 percent water, and our brains, 85...