Your brain is mostly water, but the hydration advice you’ve heard is half myth. Here’s what the science actually shows about dehydration, attention, and mood — and how to drink for your brain without overthinking it.
A sedative, not a relaxant: how alcohol fragments your sleep, blunts memory, and — even in moderation — is linked to changes in brain volume. The honest science.
Caffeine doesn’t give you energy — it borrows it. Here’s what the science actually shows about alertness, memory, sleep, and how to time caffeine so it works for your brain instead of against it.
Reading time: about 10 minutes It usually starts small, and it almost never feels like a brain issue. The television
Reading time: about 10 minutes When people set out to look after their brains, they usually reach for four levers.
Decision fatigue is the idea that your judgment gets worse the more choices you make. Here’s what the science actually supports (and what famously didn’t replicate), plus practical ways to protect your best thinking — including how to use AI without outsourcing your judgment.
Flow is the state where you do your best work and lose track of time. Here’s the science of how it happens, why constant notifications and AI keep breaking it, and how to get into the zone on purpose.
The gut-brain axis is real, but not magic. Here’s what the science actually shows about how your microbiome affects mood, focus, and memory — and the everyday habits that support both.
Your circadian rhythm decides when your brain is sharp, calm, or foggy — and light is the dial that sets it. Here’s how your body clock works and how to align it for better focus, mood, and sleep.
Boredom feels like wasted time, but your brain does some of its best work when you stop feeding it. The science of the default mode network — and how to protect your downtime.