The hormone chain behind late-night snacks.
Under 6 hours triggers a hormonal shift within 24 hours.
Stomach hunger hormone rises — you feel starving by 10 p.m.
The fullness signal weakens — you eat past satiety.
fMRI shows amygdala + nucleus accumbens light up for junk food.
Willpower brain literally goes offline. You reach for chips.
Sleep 7–8h. Cravings drop by ~30% in one week.
Read the sleep-and-weight-loss guide on our blog.