Nowadays, young people, by the time they reach their grandparents' age, are almost all in worse health than their grandparents.

In this generation of young people, you can easily see:
staying up late,
eating takeout high in oil, sugar, and salt,
huge psychological pressure,
sleep disorders, arrhythmia,
anxiety,
depression
…………
Meanwhile, the older generation has always maintained a healthy lifestyle,
they go to bed early and wake up early,
eat vegetables they grow themselves,
consume chickens and ducks they raise,
work from sunrise to sunset,
because they do physical labor every day,
they remain full of energy even as they age.
What do today's young people have to compare with the older generation?