Our expert says:
Eating Disorders Expert
Irrespective of whether your wife is 1.7m or 1.75m tall, at the weight you mention she is significantly underweight. I am neither a medical doctor, nor would I want to make any medical assumptions or a diagnosis on this forum, but I think that you need to be insistent that she see a physician urgently to explore what could be a myriad of addictions and dangerous lifestyle patterns. It is unlikely that she is going to be cooperative to this process, so y need to take charge if the matter and insist on an intervention/investigation. You cannot assume that your wife is capable of making sound judgement in her current condition.
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