The amount of water you should drink per day varies depending on factors like your sex, activity level, climate, and overall health. General guidelines from health authorities suggest:

• For men: About 15.5 cups (3.7 liters) of fluids daily.
• For women: About 11.5 cups (2.7 liters) of fluids daily.

This includes all fluids consumed, not just plain water, as other beverages and water-rich foods contribute to hydration

. Additional factors to consider:

• Increased physical activity or exercise increases water needs due to fluid loss from sweat.
• Hot or humid environments raise your water requirements.
• Health conditions, medications, pregnancy, and breastfeeding can also increase fluid needs

The traditional "8 glasses of water a day" rule (about 2 liters) is a simple guideline but may be insufficient for many people, especially men or active individuals

. In summary, aim for around 3.7 liters (men) or 2.7 liters (women) of total fluids daily, adjusting upward if you exercise, are in a hot climate, or have special health considerations. Listening to your body's thirst signals is also important for maintaining proper hydration