Water and hydration guides

Plain answers on drinking enough water, and how to make it a habit.

• How much water should you drink a day?There is no single number for everyone. Here is what the research bodies say, what changes your needs, and an easy way to check you are drinking enough.
• 9 ways to remember to drink waterNine practical tricks to drink more water every day: habit stacking, visible bottles, timed reminders, and why a reminder from someone you love works better than a beep.
• How to remind someone you love to drink waterWorried about a partner, parent or friend who forgets to drink water? Gentle ways to help, and how a short personal video reminder can do it for you.
• Drink water while you work: a desk routine that sticksLong hours at a computer make it easy to forget water. A simple desk routine, the right reminder interval, and how to stay hydrated without breaking focus.
• Water reminder app: 7 things to look forNot all drink-water reminder apps are equal. Seven things to check: reliability, notifications, flexible schedule, privacy, price, platform support, and how personal it feels.