Windmills of your mind: viral Covid jab ‘hack’ placebo effect at best, say doctors

TikTok users have posted videos of themselves swinging their arms after vaccination to prevent aches

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A vaccine hack" rumoured to alleviate any unpleasant side-effects from the Covid vaccination, which involves swinging your arm like a windmill, has gone viral on TikTok.

But medical experts have warned that the only thing those standing outside vaccination centres flailing their arms in the air will lose will be their dignity.