Body fat changes over weeks, not hours. So if your stomach is flatter at 8am than it is at 8pm, that daily swing isn't fat — it's your gut reacting to something on a schedule. This is why training and dieting haven't touched it: they work on fat, and nothing you've done has been aimed at the swing.

Cortisol is your main stress hormone, and one of its functions is storing energy for emergencies — preferentially around the midsection. When stress is chronic, cortisol stays elevated, and the body keeps prioritising that one area. It's how you can get leaner everywhere except the place you care about most.

Caffeine raises cortisol, and the effect is strongest first thing on an empty stomach. A coffee at 7, another at 10, a third at 2 and an energy drink at 4 keeps the hormone topped up until evening — which is when the tightness peaks. VYVE keeps 120mg of natural caffeine, a standard cup's worth, paired with 200mg of L-theanine: the alertness without the repeated spikes.

The good bacteria in your gut live on prebiotic fibre, and a disciplined rotation of lean protein, rice and shakes contains very little of it. An underfed gut is a more reactive one — part of why lunch leaves you pushed-out by mid-afternoon even on perfect days. VYVE includes 3g of inulin per serving, a full prebiotic dose, feeding those bacteria daily.

Caffeine still in your system at night makes sleep shallow, and shallow sleep pushes cortisol higher the next morning — which sends you back for more coffee. That loop is why you can feel exhausted and wired at the same time, and why the 3am wake-ups happen when nothing else has changed. One smoother morning dose, instead of caffeine running into the late afternoon, leaves far less in the system at bedtime.