That old rule is fake news. It started as a vague recommendation, not a scientific fact.
Your hydration needs change every day. Hot weather? Exercise? Coffee intake? All move the target.
Fun fact: Thirst is already a sign you’re slightly dehydrated. So don’t wait until you’re parched. Sip early, sip often.
Can You Drink Too Much Water?
Oh, absolutely. It’s called water intoxication, and it’s terrifyingly real.
If you drink gallons in a short time, you flush out too much sodium. Your brain swells. Headaches, nausea, coma—bad news.
Marathon runners sometimes die from this. They guzzle water without electrolytes. Don’t be a marathon runner without a plan.
