Will it smell when you pass someone else's smelly feet while playing with your mobile phone?

According to official inquiries, foot odor can spread 3 to 5 meters, and you can smell foot odor when your nose is about 1.5 meters off the ground.

Foot odor is caused by many sweat glands on the soles of the feet and easy sweating. Besides water and salt, sweat also contains lactic acid and urea. In the case of sweating, bacteria on the feet multiply and decompose keratin, and urea and lactic acid in sweat will give off an unpleasant smell. If the shoes are airtight and the air is not circulating, the smell will accumulate and be particularly strong.