The more important question appears to be why it seems to difficult to follow the advice?

Personally, I'm well aware of the positive effects of drinking plenty of water, eating vegetables, exercising daily, and going to bed early. However, I buy myself a chocolate bar every day, love pizza, just want to unwind after a hard day at work, and still read Reddit late into the night.

All the healthy stuff has friction: a workout takes time out of the day, the veggies need preparation, while going to bed early means I'm missing out on fun or intriguing things that I would learn about otherwise.

It's the signal that they have no idea what they're talking about. Always remember everything doctors said people should do to cure their stomach ulcers: the "why not?" list.

"Your medical team has carefully gone over the results of your tests, and we've finally come to the careful consensus that you should keep active, drink more water, get enough sleep but not too much, and eat your vegetables."

"But..."

"Why not? Do you think vegetables are bad for you?"

"But doctor, I have a broken leg!"

This was a large multi centre prospective RCT; so I would say that it adds to evidence from other sources acquired in less rigorous ways. This was also a structured multidisciplinary intervention; so this study may add to what can be done in terms of implementation, because there is still work to be done on that front. But yes, at face value, it sounds like what we already know! (But which many/most are not implementing…)

Apparently a lot. Between 2021 and 2023 the US obesity rate was 40%+.

Beatings will continue until morale improves.

I'm actually working on an app for myself to remind me of that.

For example, there is a full glass of water sitting on my desk from 9am. It's noon. I haven't taken a sip. Until now.

Constant reminders do work.