If microbes were visible, we’d all look like Pigpen,” Tetro said, referring to the character from the “Peanuts” comic strip.Shedding these microbes onto an exercise mat versus a dumbbell is especially ...

Shedding these microbes onto an exercise mat versus a dumbbell is especially problematic, Tetro said, because exercise mats are like petri dishes. Typically crafted from a soft, porous material ...