March issue of Marie Claire

"I'm not motivated to do things by myself, so I had a workout party with my boyfriend, some other friends, and personal trainer Jennifer Cassetta. She taught us martial arts moves - we even held up pads for each other to kick. It reminded me of how much I liked martial arts when I was younger. Toward the end, we were trying to keep up with her, and we were all dying, but we made it through! Then we had tea and chatted. I loved it. Plus, my boyfriend was ready to collapse at the end of it, and it made him realize how out-of-shape he is, so we're making a resolution to get healthy together. It's impossible to get someone to work out if they're not motivated to do it, but it's easy to invite someone to do something active with you."
- Kristine, 27, graphic designer