It's time to start acting like a responsible influencer, be it in fitness or in the arts. The moment somebody starts to make a living within the internet. They're an influencer within the internet. They must grapple with the industry complex and use it to race to the top or bottom.
Giving sensible health/advice here is okey-doke. Health Triage has a video on the recommendations. I remember this video from a long time ago, and this myth is still perpetuated.
https://www.youtube.com/watch?v=hbHp7cu2Ubk
First of a video of refuting the myth of the daily recommendations of eight cups of water a day. Hydration can also be accomplished from wet food sources, and coffee does not dehydrate.
The eight glasses ain't a thing to worry, it's not like reaching it and the body will be like "Ding, your body has received the water for maximum compositional health results!"
https://www.instagram.com/p/CdD-EypNfg5/
Charlotte, a dietician, has the best quick summary of what colour of urine you'd need to ensure the best hydration. Along with some basic water recommendations you can follow.
Ultimatley, hydrate enough so one don't get stomach cramps. Then move on.