ABC News's Dr. Richard Besser says it's easier than ever to get vaccinated.

With influenza's yearly arrival imminent, a vast network of epidemiological surveillance systems is springing back to life.

Getting a flu shot may reduce the risk of major heart problems, such as heart attacks or unexpected chest pain.

The National Institutes of Health is looking for brave volunteers to have a live flu virus squirted up their noses.

The Centers for Disease Control and Prevention says that the nasal spray form of the flu vaccine is the preferred way to vaccinate kids ages 2 to 8.

Wearing a surgical mask can stop you from getting the flu, provided you're very diligent about it.

Grandma's natural cough remedies were ahead of the science. Here's how to quell the cough with ingredients you have at home.

Research centers collaborate to create a better, longer-lasting solution to the yearly flu assault.

From managing stress to fighting cancer, tea has many benefits to help someone live a healthier life.

Soak in the cuteness of this baby koala after her first checkup at the San Diego Zoo.

'The Secret Life of Pets' is a hilarious rendition of what happens when you leave your pet home alone.

An adorable rescued pinniped is released back into the wild after making a speedy recovery at Taronga Wildlife Hospital.

When crisis hits, the jokesters come out of the woodwork. Here is what to expect.

As Make It Right passes the halfway mark with 76 affordable green homes built in New Orleans, the foundation throws a fundraising fête to help ensure that the

An extremely dangerous storm is slicing toward northwestern Alaska and is expected to bring blizzard conditions and hurricane-strength winds to the state's west

If you're dreaming of a white Christmas, these photos of snow-covered nature from all around the world might do the trick.

The lauded structure is bustling with activity as a whopper of a winter storm approaches.

Study links benzene exposure to sperm abnormality.

New report says toxic chemicals are causing Americans 'grievous harm' that could be prevented by better government oversight.

The EPA decided this week to limit cancer-causing emissions from hydraulic fracturing, aka 'fracking,' but its new rules won't take effect until 2015.

Terrible environmental conditions and an unyielding government has put China in dire danger of poisoning its enormous population and the land around it.

Studies reveal what cat owners have suspected all along: Your cat hears you when you call — he just chooses not to respond.

Constitution Lakes Nature Preserve is home to a unique art walk dotted with visitor-made pieces constructed entirely from found objects.

The light from the moon influences more than you might suspect, including animal behavior and farming.

The movie "Hidden Figures" is the story of the African-American trailblazers who helped win the space race. Now NASA is naming a building after one of them.

We don’t think that people who want to eat organic should have to pay more for their food.

A new, award-winning public arts project makes good use out of building materials salvaged from Detroit's sizable supply of destroyed/derelict homes.

For decades, Proenneke lived in a handmade cabin at Alaska's Twin Lakes; his writings and films have left a legacy.

The brewery in New York state uses local energy, grows its own ingredients, composts – and even more.

With Earth Day now behind us, it’s time to take another look at the steps we are taking to be a more sustainable company.

Walmart's recent partnership with Plug Power is helping the company meet its three major sustainability goals.

At NuVu, students solve complex problems by focusing on imagination and constructive feedback.

Have you secured the health of nature so we continue to have quality of life?

For 25 years, EDF has partnered with leading companies to prove that good environmental strategy is good business strategy.

Collaboration is the key as Walmart works with some of the world's largest corporations to address global sustainability challenges.

The “Walmart Advanced Vehicle Experience” concept truck aims to demonstrate a wide range of cutting-edge technologies and designs.

Our sustainability commitments help us cut costs so we can pass those savings on to our customers

Watch this replay webcast of Walmart's Global Sustainability Milestone Meeting.

Company will focus on four pillars to advance the sustainability of its biggest product category, food

Talia Frenkel created a company that makes healthier condoms — but that's not all.

Walmart partner Conservation International has launched the "Nature is Speaking" campaign to provoke a conversation about nature's essential role in our lives.

Habitat loss is devastating rare species worldwide, but as the success of wildlife corridors suggests, a little connectivity can go a long way.

How a pen-pal relationship between altered two lives, inspired a book and continues to help others around the world.

Four students have developed Google Glass image-recognition app called ThirdEye that verbally identifies objects for visually impaired people.

Whether crafting cookbooks or ice cream, Shaun Chavis is all about sharing her love of authentic food.

How one U.S. businessman is using his startup to bring clean water and hope to drought-stricken Kenyan communities.

Research by these women has changed the way we think about space — from dark matter to the search for extraterrestrial intelligence.

When black widow spiders mate, the females often kill and eat the males. But the male spiders have found a way around this terrible fate.

A woman decided to volunteer at The Wildcat Sanctuary, a small animal refuge in rural Minnesota, and the results have been pretty amazing.

I briefly lived with hunter-gatherers in the rainforest, where a couple visiting tourists did something very unexpected.