I heard about an LPGA Tour pro who sucks on lemons when she gets stressed out while playing. Is this true? Does this actually have a calming effect on people? – Carlos Watson

Strange but true. When the going gets tough, Nanna Koerstz Madsen, a 24-year-old from Denmark, likes to chomp down on a nice, juicy lemon.

It seems the ritual is partly designed to distract her. She has said it helps shift her focus away from stress or anger.

But some nutritionists believe there are more benefits than that. Lemon juice contains potassium, which can help combat anxiety, and it has been shown to reduce blood pressure.

Its electrolytes will also help keep you hydrated, it’s known to ease joint and muscle pain, and it even aids digestion. Other than the excruciatingly sour taste, what’s not to like?