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Anne McQueen and Susan Briggs are identical twinsIdentical twins started out as one egg that divided. They have the same genes and so are "identical". . They are 84 years old and have never lived more than a few minutes away from each other. And they still dress in matching clothes.

They have become famous online after their son-in-law posted a video of their matching outfits on TikTok.

Some claim that identical twins can know what each other is thinking without saying anything. Many scientists have set out to prove this is not true, but the idea is still very common.

Anne and Susan say they often think the same thing at the same time. "We have the same brain," says Susan.

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Studies show that twins outlive people who are not twins. Some think this shows that having someone around to stop you being lonely can help you live longer.

But this person does not have to be a twin, they argue. Your "soulmate" could be a partner, but it could also be a sibling or a very good friend.

Yes! The world can be a lonely place sometimes. If we all had someone to listen to us and understand us all the time, we would be much happier.

No! We should learn to be happy by ourselves first. True happiness can only come from yourself. You do not need to have a soulmate.