A research study has concluded that Botox can make people more depressed. By partially freezing the muscles on the forehead, it stops people from being able to express their feelings visually. This can lead to keeping emotions bottled up inside and hence perceiving the world in a more negative way.

Dr Judith Grub told The Sun: "Suppressing negative emotions is something we do every day to be polite.

"However, my research shows that paralysing muscles that help you to express emotion leads to internalising these feelings."

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