CNN Health

Mass killings and school shootings spread "contagiously," a study found, where one killing or shooting increases the chances that others will occur within about two weeks.

From the paid parental leave one-upmanship by Silicon Valley companies to Democratic presidential candidates calling for guaranteed paid leave to Republicans arguing mandated paid leave could drive small businesses out of business, the issue is getting more attention in the United States. Currently, the United States is the only industrialized country in the world that does not guarantee paid parental leave.

Michelle: Julianna, if you get sick again, do you want to go to the hospital again or stay home?

Breast cancer survivor, Shondia Sabari, made a bold decision after her double mastectomy. Now she inspires others through her non-profit organization.

It's that time of year when nobody, especially children, seems to stay healthy.

As the mom of two girls, ages 7 and 9, there are countless reasons why I'm freaking out about the teen years. But topping that list, at the moment, is the thought of parenting in the social media age.

Getting a diagnosis of depression usually involves filling out questionnaires about your mood and undergoing lengthy interviews with a psychiatrist. But smartphone apps might be able to handle some of that work, and at least tell you if you are at risk of depression, simply by collecting GPS and other data, according to a new study.

The United States spends some of the lowest amounts of its total healthcare on prescription drugs relative to other developed nations. But Americans also pay some of the highest prices for those drugs, relative to the rest of the world.

A new survey of college students, one of the largest ever focusing on sexual assault and sexual misconduct, has reignited the debate over just how big a problem sexual assault on campus really is.

Doctors have long known that systolic blood pressure below 120 was considered normal and meant a lower risk of heart disease and kidney problems. But they would often only treat patients if that top number crept above 140, the threshold for officially having high blood pressure.

They grow up to one meter in length and kill their prey using injections of venom.

Pesticide use in homes may increase the risk of children developing leukemia or lymphoma, a new report suggests.

Thank an ancient squirrel, climate change and French scientists for the new discovery of an ancient virus, Mollivirus sibericum, that sounds like it could launch a creepy movie.

Look at the fitness section of any magazine rack and you'll find men's publications splashed with words like "get more" and "gain" and "build," while women's magazines feature directives like "fix" and "slim" and "lose" and "tone." Notice the difference?

An increasing number of women in the last decade have been deciding to have both their breasts removed after being diagnosed with cancer in a single breast. It now seems that more men are also opting to have this type of double mastectomy, according to a study.

If you have a daughter like I do who hates dresses and abhors anything pink, sparkly or with ruffles and frills, you are pretty much out of luck if you head to most of the major retail stores. What you end up doing is shopping in the boys' section for your daughter's clothing.

Have you read the latest study about meditation? Probably not, because even as you read this sentence another has likely come out. There is a steady stream of new research and news stories about the benefits of meditation and other mindful breathing practices. As they report, meditation boosts energy, helps with focus, reduces stress and anxiety, increases resilience and possibly, subtly, changes your life and your brain for the better.

Have you ever waited with excitement to share some amazingly good news with your partner, only to experience a surge of frustration and resentment when he or she barely reacts to your announcement? As a society, we place a huge amount of emphasis on being there for each other when we're in need, but past research has actually shown that relationship satisfaction is influenced as much, if not more, by how we react to each other's good news. Whereas emotional support from a partner when we're down can have the unfortunate side-effect of making us feel indebted and more aware of our negative emotions, a partner's positive reaction to our good news can magnify the benefits of that good fortune and make us feel closer to them.

Throughout the history of capital punishment in America, states have reviewed and revised execution methods in the interest of finding a more "humane" option.

Chefs across the country joined forces with schools to create, test and enter their top kid-pleasing healthy recipes into the U.S. Agriculture Department's Recipes for Healthy Kids competition. Here are some of the top winners for you to enjoy at home, and look to add on the lunch menu at your local school.