If you feel mentally exhausted by the end of the day, struggle to make simple decisions, or find yourself lying awake replaying tomorrow's to-do list, you’re not imagining it. What doesn’t help is assuming poor sleep and mental exhaustion are completely separate problems.

If you've ever felt tired, sluggish, or unable to focus—only to realize you hadn't had much water all day—you’re not imagining it. What doesn’t help is assuming every dip in energy means you need more caffeine or another snack.

If you've ever noticed poorer sleep, lower energy, stronger cravings, or a sluggish feeling after drinking—even just a few drinks—you’re not imagining it. What doesn’t help is thinking alcohol only affects your liver or that its effects disappear once the buzz wears off.

If you've ever lost weight quickly only to regain it months later, you’re not imagining it. What doesn’t help is believing that faster weight loss always leads to better results.

If you've noticed it takes longer to recover from workouts, maintain muscle, or feel satisfied after meals, you’re not imagining it. What doesn’t help is assuming your protein needs stay exactly the same throughout life.