You've probably heard the advice to drink eight glasses of water a day. It's a reasonable starting point, but your actual hydration needs depend on several individual factors.
What affects your hydration needs
Body size, activity level, climate, and even diet all play a role. Someone who exercises regularly or lives in a hot climate will generally need more fluids than someone with a more sedentary routine in a cooler environment.
Signs you might need more water
Thirst is an obvious signal, but by the time you feel thirsty, you may already be mildly dehydrated. Other signs include fatigue, headaches, and dark yellow urine.
Food counts too
Fruits and vegetables like cucumbers, watermelon, and oranges have high water content and contribute to your daily fluid intake alongside beverages.
Simple ways to stay on track
Keeping a water bottle within reach, setting reminders, and drinking a glass with each meal are easy ways to build the habit without overthinking it.
Rather than chasing an exact number, pay attention to your body's signals and adjust based on your activity and environment.