Does sweaty feet matter?

Many types of fungus are common in our environment. Among them are the dermatophytes, a group of opportunistic parasitic plant organisms, similar to molds or mildew that, lacking chlorophyll does not require sunlight for growth. Sweaty tennis shoes and moist socks create the perfect conditions for them. The funguses thrive in a warm, moist, dark environment and they eat the protein keratin that our skin produces.