Five liters? That's 11 pounds. At what point do you find that the work to carry the weight of that much extra water causes you to drink more, than if you carried less and as a result were less thirsty?
I drink a lot less in the winter, too. I attribute that to not sweating so much trying to cool down. However, the air in winter is dramatically dessicated compared to summer, and many people will lose a significant amount of body moisture through their breathing in winter. Especially those who don't lose a lot to sweating in the summer.
I drink a lot less in the winter, too. I attribute that to not sweating so much trying to cool down. However, the air in winter is dramatically dessicated compared to summer, and many people will lose a significant amount of body moisture through their breathing in winter. Especially those who don't lose a lot to sweating in the summer.