According to some beliefs, placing an onion in the room at night can help eliminate negative energies and purify the atmosphere. Onion is considered a symbol of purification in many cultures, and its pungent odour is thought to dispel harmful influences.

3. 3. Improving the quality of sleep:

There are beliefs that onion can improve the quality of sleep by helping to relieve anxiety and promote relaxation. Some people think that the smell of the onion can have a soothing effect on the nervous system, thus promoting deeper and more restorative sleep.

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4. Traditional healing practices: