Add Yahoo as a preferred source to see more of our stories on Google. Food & Wine / Getty Images Whether you’re snacking on a quality chocolate bar or baking an indulgent dessert, you might be alarmed ...

So you've stumbled upon a stash of candy you forgot you had. Score! But after you peel back the wrapper on that chocolate bar from Halloween circa who-knows-what-year, you notice a white or gray film ...

Laura holds a Master's in Experimental Neuroscience and a Bachelor's in Biology from Imperial College London. Her areas of expertise include health, medicine, psychology, and neuroscience. Laura holds ...