flat sneakers bad for feet

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Casual Sneakers
Danger ranking: 4. "I have a lot of patients who come to me with heel pain from plantar fasciitis or heel spurs that they developed from wearing very flat sneakers that don't offer support," says Brenner.

Best for: Cruising on a bicycle built for two; chilling at a backyard barbecue

Avoid: They may look sporty, but they're not intended for walking or standing for long periods of time

Doctor's note: Don't be fooled by their relative comfort. "I work with a lot of professional women who think these are their 'safe shoes,' but they can cause a lot of problems," says Brenner.