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Tom’s Guide
Tom’s Guide
Technology
Jessica Downey

Forget '75 Hard' — TikTok’s new ‘Great Lock-In’ fitness challenge is here, and I asked the experts if it’s worth your time

A photo of a man very focussed doing a dumbbell row.

We are only a week into September and already summer feels like a distant memory. For some, fall is the season of hibernation with blankets, comfort TV and hot drinks on repeat.

For others, it is a final push to tick off goals before the year is out. That second camp has found its rallying cry on TikTok, where a new trend called the "Great Lock-In" is gathering pace.

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