Who doesn’t love a good vacation? But the likelihood of stress goes through the roof as soon as you factor in the act of traveling. Annoyances like cramped leg room, high gas prices and mysterious service fees can make getting from point A to point B, a real pain. Is there a more efficient way to drive, board a plane or even fuel your vehicle? Harry turns to some very smart people who are doing their best to optimize the way we travel. You'll hear about how AI can create the most efficient road trip and the science behind boarding an airplane faster. And will kelp power the transportation of the future?

For information on Randy Olson's optimal road trip: http://www.randalolson.com/2015/03/08/computing-the-optimal-road-trip-across-the-u-s/

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Studies show that, when picking between underdogs and the favorite, more people will side with the underdog. So, why are we so drawn to them? And it’s not just about sports and politics. It’s the human experience. Harry talks to his dear friend Neil Paine of FiveThirtyEight, underdog expert Nadav Goldschmied, and CNN's very own Coy Wire. As a former Buffalo Bills player, Coy knows a thing or two about being underestimated. We also do some serious analysis of who really deserves the title "America's Team." Spoiler: It's not the Cowboys or the Yankees.

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Let’s face it: We cannot live without our weather forecasts. It’s the first thing we check most mornings — and when they’re wrong, we get pretty frustrated. But forecasting is actually the best it’s ever been! Harry learns the secrets to predicting the weather accurately and investigates how climate change could make those predictions a little cloudier.

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In spite of the rise in romance reality shows, it is possible romance is actually disappearing in real life. The statistics certainly paint a picture that love is on the decline, whether it’s less sex, more singles or fewer romantic gestures. So, WHO or WHAT is the culprit? Sherlock Harry is on the case and he even attends a Bridgerton Ball to investigate.

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Harry goes the extra “yard” to find out why the United States is one of the few countries that hasn’t gone metric. Americans seem more than content in a hybrid world of liters AND gallons. Why can’t we choose one form of measurement? It turns out there’s a lot of national pride and history wrapped up in our inches and pounds — not to mention money and politics.

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Diet soda is one of the few things in life that makes Harry very happy. And it turns out, it might be disappearing as “zero sugar” infiltrates the carbonated industry. Why is this happening all of a sudden and is there a difference between the two labels? Or is this just a war of words?

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How much money do we need to be happy? Should we move heaven and earth to earn six figures, or can we be just as happy with less? Harry gets some answers from Matt Killingsworth, who created an app to track happiness in real time. Harry also learns why paying for experiences may be key to finding joy and tests that theory on a high-flying trapeze with help from Trapeze School New York.

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More and more of us are in need of glasses these days and luckily, there is now a much more positive perception of people with “four eyes.” However, it wasn’t always that way. So where did the stereotypes come from, and is there a chance that people who wear glasses are smarter than those who don’t? Harry also discovers why eyewear has become defense attorneys’ favorite accessories for clients in the courtroom and visits Dr. Craig Moskowitz of Moskowitz Eye Care.

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There’s been a lot of debate about how often we need to bathe — and the answer might be less than you think. It turns out we have a complicated history with washing dating back to the baths of Ancient Rome. Harry goes straight to the experts to decode the hygienic necessity of bathing versus our societal norms. Plus, he sees what life is like without deodorant. You’ll have to smell it to believe it.

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No one thinks they have an accent … but it turns out we all do. However, is it possible our distinct ways of speaking across the U.S. are disappearing? If so, what else is getting lost along the way?  Harry Enten goes on a journey to find out if conformity is affecting how we converse. Plus, get ready to hear Harry with an entirely new accent!

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