The Science of Drinking Hot Beverages in the Summer

Hot beverages may heat us up initially, but the sweating will naturally cool us down.
2:41 | 06/30/14

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Transcript for The Science of Drinking Hot Beverages in the Summer
Up next in the heat index. Steaming hot coffee, even in the summer, and a new study, university of british Columbia, why we drink hot beverages in the summer. Perhaps why you do it, we cool down by sweating, when you drink something hot, it makes you sweat, and you stay cool. I didn't know why I did it. I like coffee. You could have an iced coffee, a lot of people stick to hot coffee in the summer. Why would you do that? Sometimes it's just your body telling you what to do. If you don't sweat, some people just clam up -- Right. Where did you -- Go on, Dr. Muir -- Dr. Jen Ashton left me in charge. She shouldn't have left the table to quickly. She shouldn't. You get the point, if you don't sweat, have the iced coffee. Ryan drinks a cup. And we have much more, Sharon Osbourne is opening up about the secret shame she felt after gastric bypass surgery in 1999. She said is felt like an embarrassing cut to weight loss. She's been vocal. We have a picture with her husband, ozzie, in 1987. Very different. Before the surgery. She had the band removed back in 2006, and she keeps her weight under control with the Atkins diet, kind of like what we were talking about with Dr. Jen Ashton, but she admits sticking to the low-carb regime is a struggle, but she cheats from from time to time. And she looks fantastic. It's tough on what to do, what no not to do. She's always honest. She is. She's up front. All right. I have to go take a walk, everybody. Where are you going? To the social square. Follow me over here. We want to talk to you about Forbes magazine's 15th annual celebrity 100 list, and their ranking of the most powerful celebs. Topping it this year, beyonce, the first time she's hit number one. And capping an extraordinary year, selling out a 132-show world tour. Next, Lebron James, number two, and rounding out number three, music producer Dr. Dre, who sold beats. The little thing called beats to apple. And he made the most money out of the anybody this year. But he was 62 last year, and now top three.

This transcript has been automatically generated and may not be 100% accurate.

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