Sleep as a key to a healthy life

We wear our sleep deprivation like a badge of honor. “I can get by on five hours” almost sounds like a testament to dedication. But sleep isn’t a negotiable perk that you can make up for on the weekend; it’s the quietest and most powerful driver of your resilience. In this session, Elke Van Hoof will show you what’s really happening in your brain and body while you sleep, why those very hours determine how you’ll cope with stress, emotions, and setbacks tomorrow, and how you can reclaim this underutilized gold. You’ll leave with a new perspective on rest and with insights you can put into practice that very same evening.

Ask someone how they’re doing, and you’ll often hear the same thing: busy, not much sleep, but I’m managing. We say it almost with pride. Yet we’d never say, “I only eat every other day” or “I only breathe on the weekends.” And that’s exactly how we treat sleep: as something that can wait. Thomas Edison once called sleep a criminal waste of time. That mindset lives on, and it costs us more than we realize.

Because sleep isn’t a passive break. It’s an active night shift. While you sleep, your brain transfers memories from temporary to permanent storage, clears away waste products that have built up during the day via the glymphatic system, and restores your heart, your hormonal balance, and your immune system. Over millions of years, evolution has not produced a single animal that can do without sleep—not even the dolphin, which must never stop swimming and therefore sleeps with only one hemisphere of its brain at a time. This tells us something fundamental: sleep is non-negotiable.

The focus of this session is how sleep affects your resilience. Elke Van Hoof explains how a single bad night’s sleep causes your emotional control center—the amygdala—to react up to 60 percent more intensely, while the rational brake—your prefrontal cortex—loses its connection. You’re less able to read others’ emotions, you make more impulsive decisions, and you misjudge risks. Not because of a weakness of character, but because of neurology. And the insidious thing is that sleep isn’t like a bank: a deficit you accumulate can never be fully repaid, and the larger your debt becomes, the less you realize you’re suffering from it. The good news is just as clear: a single good night’s sleep restores that balance, and people who consistently sleep better demonstrably build up greater resilience against stress, low mood, and exhaustion.

This isn’t a talk full of restrictions and guilt. It’s an invitation to stop seeing sleep as wasted time, but rather as the most powerful investment you can make—for free—every night.