Healthy blood oxygen levels are vital for every aspect of health. But what are normal blood oxygen levels, and how do you know if your levels are too low?

Ryan Naylor's pitch for Esso Watches was a memorable moment in "Shark Tank" history - the sharks essentially ate him alive. Where are he and the company today?

Your gym teacher probably rammed this idea into your head: Don't forget to stretch! However, there are two exercises where it won't help prevent injury.

Do substances like alcohol and cannabis really make you more attractive? Read the research behind "weed goggles" to see if there's anything to it.

It may be an idea you've toyed with, and there's no doubt it'll need tons of self-control. But what really happens to your body when you stop eating fried food?

Feeling under the weather? You're probably in good company. Here's why more employees call out on August 24th than any other date in the year.

The Mediterranean diet is well known for being one of the healthiest diets out there. In fact, following this diet could help you live longer. Here's how.

You don't typically think of healthy when you hit your local drugstore for a quick snack. However, there is one surprisingly healthy canned food you can buy.

There are ways to manage attention-deficit/hyperactivity disorder (ADHD) without becoming dependent on medication. Here are some helpful tips and techniques.

There are a lot of birth control methods on offer, but what's the most effective at preventing pregnancy? This viral TikTok video makes it simple.

Worried that your booster shot may not protect you from Omicron? Here's what the experts say about the Moderna booster, in particular.

About 65 to 70% of pregnant women in the United States report using acetaminophen during pregnancy, but is it actually safe?

Americans have long been setting their clocks back in the fall and ahead in the spring for daylight saving time -- and it's having an impact on our bodies.

Apple juice may not be as good for you as you might think. Here's why.

Red meat, for many years, was the staple of American diets. Why is red meat itself so controversial, though?

Have you always wanted to grow a beard that you can be proud of? Fortunately, according to science, there are ways that you can boost your beard growth.

Curious to know which of your fave celebrities and public figures have rolled up their sleeves for the COVID-19 vaccine? Some may just surprise you.

Life expectancy decreased by 1.87 years in the United States in 2020, a steep decline that has not been seen since World War II.

Because any natural immunity that COVID-19 provides is so variable, anyone who has already been infected should get the vaccine anyway, health officials say.

It would be all too easy to think of Simone Biles as some sort of super-human., but that would negate all of her hard work. Here's how she stays so fit.

A new study has looked at which age group is most responsible for spreading COVID-19: People aged 20 to 49 are responsible for 72.2% of infections.

Your calves' size are affected by your age and genetics, but that doesn't mean there's no room for change. Here's what you should do if you want bigger calves.

The National Science Foundation looked at some of the dirtiest places in your kitchen and found that these two spots in your fridge are dirtier than you expect.

In an episode of "Shark Tank" season 8, scientist-entrepreneur David Cohen made the case for his brainchild, Sunscreenr. Here's what happened to the project.

Looking for a snack? Before you throw in the towel and grab a Snickers bar, CVS has a chocolate-covered snack that's a little healthy while being a lot tasty.

If you've recently picked up on a sweet smell when going No. 2, you might be wondering what's going on. Sweet-smelling poop could be a sign of this condition.

Going through something as challenging as surgery can cause your locks to fall out at an alarming rate. But why is hair loss after surgery so common?