I sometimes think all the fitness advice ultimately just consists of things that your mother told you. Stand up straight (good posture), get to bed early (importance of sleep), eat your greens (a varied natural diet), don’t snack between meals (some sort of time restricted feeding), stop worrying so much (mental health), wear sensible shoes (posture, foot health), brush your teeth (because mouth biome has all sorts of effects), get some sunshine (Vitamin D and circadian rhythms ) and enjoy fresh air (breath and move).