Shoes Are Worn Out To Prevent Beriberi.

It's better to form a habit of changing slippers on the way home, and put the shoes worn for a day in the ventilating place to dry.

Usually it is better to wear sweat socks.

After you wash your feet, you should wipe your feet dry or dry them, then wear socks or rest.

If you need to sit down for a long time, for example, by air or by train, without affecting other people's premise.

Next suggestion is to change slippers.