Why your sleep is the first pillar to rebuild

Most people come to me wanting to fix their weight, their energy or their mood. Almost every time, we end up starting somewhere else: sleep.

What the evidence actually says

Adults who regularly sleep less than seven hours have higher rates of type 2 diabetes, high blood pressure, heart disease and low mood. Short sleep also disturbs the hormones that govern appetite — ghrelin rises, leptin falls — which is why a bad night so often ends in a day of snacking and cravings.

The good news is that sleep responds quickly to simple, consistent behaviour:

• A regular wake time — even at weekends — is the single most powerful lever, because it anchors your body clock.
• Morning daylight within an hour of waking helps set that clock.
• Caffeine has a half-life of around five to six hours. A 4pm coffee is still working on your brain at 10pm.
• A wind-down hour — dim light, no work, no doom-scrolling — tells your nervous system the day is over.

Start with the diary, not the rules

Before changing anything, spend one to two weeks with the sleep diary in your portal. You'll see your real rhythm — not the one you think you have. Patterns almost always appear: the late caffeine, the drifting bedtime, the Sunday-night reset. Once you can see it, we can change it — gently, one anchor at a time.