Megan Roup, who's been the trainer to Dakota Johnson, Miranda Kerr, Molly Sims, Elsa Hosk and Whitney Port, has developed a series of exercises that can be done in under 10 minutes. (Photo: Courtesy ...
Prefer Newsweek on Google to see more of our trusted coverage when you search. A quick burst of exercise before class may be the key to sharper thinking and better grades, according to new research ...