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'Natsubate' Is The Reason Many Of Us Feel So Tired Right Now

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02.07.2026

'Natsubate' Is The Reason Many Of Us Feel So Tired Right Now

The 'heatwave hangover' is real.

Parents editor at HuffPost UK

Everyone – and I mean, everyone – I’ve spoken to this week has remarked on how tired they’ve felt.

I’ve felt it too. That level of bone-deep exhaustion that makes you feel like you could simply drop to the floor and drift off to sleep, even thought it’s 1pm.

And it turns out there’s a relatively simple explanation as to why there’s been this level of collective fatigue, especially in areas impacted by last week’s extreme heatwave.

In Japan – where the summers tend to be hot but also very humid (a bit like last week’s heatwave) – they call it ‘natsubate’, which Tokyo Weekender said translates as ‘summer exhaustion’.

Many of us are feeling the effects of summer exhaustion

The heatwave has had more of an impact on your body than you might think.

There are a few factors at play here. Dr Ginni Mansberg, a GP and........

© HuffPost