This Is What Actually Happens When You Hold Your Breath During A Heavy Lift

You've probably done it without realising, and there's more going on than you'd guess.

Watch anyone strain against something heavy and you'll spot it, that instinctive breath-hold as they grit through the tough part. You've almost certainly done it yourself without even thinking. But what's actually happening when you clamp down like that?

Briefly holding your breath during effort naturally creates some pressure in your midsection, which can help you feel more stable and braced for a moment. It's a completely instinctive thing your body reaches for when the going gets tough.

The catch is that holding your breath for too long or straining excessively isn't comfortable and can leave you feeling lightheaded. That's your body's way of telling you the balance has tipped and it would quite like some air back, thanks.

For most everyday movement, the sensible approach is to keep breathing in a steady, controlled way rather than turning purple. Let your breath flow with the effort, and save the dramatic grunting held-breath heroics for the movies.