Keep Water Where Your Hand Already Goes

Most people don't drink enough water not because they don't want to, but because it requires getting up. Proximity is the simplest health hack. Keep a filled water bottle on your desk, your nightstand, your kitchen counter. If it's within arm's reach when you'd normally reach for your phone or a snack, you'll drink more without thinking about it. Don't rely on thirst signals — by the time you feel thirsty, you're already mildly dehydrated.