![Drinking 8 glasses of water a day usually isn't necessary, an exercise scientist says - The Washington Post Drinking 8 glasses of water a day usually isn't necessary, an exercise scientist says - The Washington Post](https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/WDL2I6VISUI6XKFHL5C53TPTMQ.jpg)
Drinking 8 glasses of water a day usually isn't necessary, an exercise scientist says - The Washington Post
![Countrywise ar Twitter: "How much water do you drink a day? Health authorities recommend that you should be drinking eight 8-ounce glasses a day, which equals about 2 litres, or half a Countrywise ar Twitter: "How much water do you drink a day? Health authorities recommend that you should be drinking eight 8-ounce glasses a day, which equals about 2 litres, or half a](https://pbs.twimg.com/media/EPCOuyQXsAAePY-.jpg)
Countrywise ar Twitter: "How much water do you drink a day? Health authorities recommend that you should be drinking eight 8-ounce glasses a day, which equals about 2 litres, or half a
![Lima Water Corporation on Twitter: "Staying hydrated is one of the best ways to maintain a good immune system, but do you really need to drink eight 8-ounce glasses of water a Lima Water Corporation on Twitter: "Staying hydrated is one of the best ways to maintain a good immune system, but do you really need to drink eight 8-ounce glasses of water a](https://pbs.twimg.com/media/EtW46ESU0AESRwx.jpg)