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Christmas is a time of celebration, relaxation and gift giving.

But choosing gifts can also make it a time of stress and anxiety. The wrong gift can actually do more harm than good.

Here is some advice, based on decades of research, on how to side-step such pitfalls.

Why do we give gifts?

Research into the psychology of gift-giving suggests there are two goals to consider when giving someone a gift.

The first is to make the recipient happy. That mostly depends on whether the gift is something they want.

The second is to strengthen