Different colors have always conveyed different emotions, a common example being villains clothed in black, but did you ever think a color could make you hungry?
Apparently, out of all colors, red is proven to induce hunger more than any other! Red attracts attention, causes excitement, increases energy, and can even raise heart rate. It looks like restaurants learned this trick too. Look at almost any major food chain, such as McDonald's, Wendy's, Burger King, Coca-Cola, and even Walgreens, and red will be there somewhere!