You see all these commercials on television for dietary supplement that are supposed to decrease cortisol. What if you could decrease it without taking anything? According to a British study, you can. Try keeping something that triggers happy memories on your desk where you can see it easily. Maybe you have a favorite vacation picture or a seashell that you picked up at the beach. I keep a pair of 3-D glasses and a miniature pink yo-yo in my workspace to remind me not to take life too seriously. The British study showed that looking at something that makes you happy will increase your serotonin levels by as much as 24% and decrease cortisol by as much as 16%. In my book that's better than taking a pill.