Mirabai Holland

Boomer fitness guru, creator, Moving Free® Technique

I've seen it time and time again: determined beginners pushing so hard and either getting hurt and quitting or just quitting because they couldn't take it any more.

Jennifer Merschdorf

Chief Executive Officer, Young Survival Coalition

I hope all of us use this news as an opportunity to encourage people to learn and ask questions about their own family cancer history and raise awareness that young women can and do get breast cancer.

Ben Greenfield

Fitness and Triathlon expert; Get-Fit Guy podcast host

Growing up, many of our parents would demand that we sit up and stop slouching, for no other reason than it might make us look bad. But there are so many other elements to the importance of posture, elements that are affecting millions of us every day

Alan G. Kraut

Executive director, Association for Psychological Science in Washington, D.C.

PE, CPT and similar treatment programs are relatively short-term, and have proven effective in a variety of settings. And studies suggest that providing these treatments for PTSD result in reduced health-care costs. So why aren't they being commonly delivered to the people who need them?

Sylvia E. Meléndez-Klinger

Registered dietitian, certified personal trainer, nutritional consultant and founder of Hispanic Food Communications

As a dietitian, let me share a few basic principles of health and nutrition I have learned and practiced not only with my patients but with my own family. I have compiled a few tips to help you make smart choices when trying to eat balanced meals while on the run.

Stanton Peele

Addiction expert

The ideal image many people had of the genome as a straightforward template that stamps out human beings in a predictable way was, and is, a fantasy. And this is nowhere more evident than in the case of human personality traits and mental illness.

Elizabeth Swisher, M.D.

Medical Director, Breast and Ovarian Cancer Prevention Program, Seattle Cancer Care Alliance; Professor, Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of Washington

I admire Angelina for taking the unselfish view that she will do whatever it takes to be sure she will be around to parent her children. And I commend Angelina for making her decision public and thereby supporting other women who face an increased cancer risk.

Liane Kupferberg Carter

Columnist for Autism After 16

So why does this myth that autistic people lack empathy persist? The reasons are complicated -- a convergence of media, popular culture, and ignorance.

Lillian Medville

Blogger, Lillian's Test Kitchen

Do you know how much work goes into getting our food to us? Farm to table? So much more work than I realized and still more than I know. That's how much.

David Katz, M.D.

Director, Yale Prevention Research Center

As a culture, we are drowning in calories of mostly very dubious quality, and drowning in an excess of labor-saving technology. I have compared obesity to drowning before, but want to dive more deeply today into the implications for fixing what ails us.

Barbara Ficarra

Journalist; Founder, Healthin30.com; Media broadcaster

Do we all have the power of empathy? Are we hardwired to know what other people want? Is it easy to think about other people's thoughts?

Aditi Nerurkar, MD

Integrative Medicine Physician, Harvard Medical School

As we Tweet, post, like, share, and pin, are our brains registering our digital frenzy and shapeshifting accordingly? Preliminary research suggests yes.

Kripalu

Center for yoga and health/wellness; Non-profit educational organization

Mindfulness, something once practiced only in more closeted meditation circles, has recently become a greater mainstream interest. Perhaps for this reason, research on mindfulness meditation has increased considerably over the last decade.

Jane Roper

Blogger, Author of "Double Time: How I Survived--and Mostly Thrived--Through the First Three Years Mothering Twins"

Perspective is important. We should all keep in mind that our problems could be worse, and that all suffering is relative. This can help us feel less overwhelmed by our own challenges, more grateful for our many blessings, and more compelled to empathize with and help others.

Katja Rowell, M.D.

Clients tell me they offer a variety of foods "all the time" and are frustrated by constant rejections. Many parents don't understand and are grateful to learn what a better "offer" looks like.

Dr. Gail Gross

Family & Child Expert, Educator, Author. Ph.D. Ed.D.

Listening empathically to children after a trauma, without judgment, is one of the greatest tools parents have.

Marlo Thomas

Award-winning actress, author and activist

I was as stunned as everyone else by Angelina Jolie's revelation on Tuesday that she'd had a double mastectomy to reduce her risk of developing breast cancer. That's not only because one of the most famous women in the world had managed to keep such a dramatic secret under wraps for so long (although that is pretty amazing).