8 Things That Wreck Your Erection

Boners are all about blood flow. So your heart—the organ that pumps your blood—has to be in tip-top shape for you to have A-plus erections.

Anything that puts strain on your ticker, like being overweight or smoking, also tends to take lead out of your pencil.

Testosterone is the second factor that's crucial to a strong erection, and there are plenty of weird things that screw with its production. All the items on this list can mess with your manhood:

1. Grocery receipts. The types of thermal paper and ink used for most supermarket receipts contain high levels of bisphenol-A (BPA), a chemical that increases your body’s production of the female hormone estrogen. And that estrogen boost—along with some other BPA-triggered hormonal changes—harms your hardness, finds a study from Kaiser Permanente.

Here's What Energy Drinks Actually Do To Your Body

Energy drinks can give you a boost when Monday morning hits you hard. But that fizzy beverage isn't doing much for your body beyond your temporary pep, according to a new review published in the journal Frontiers in Public Health.

After reviewing the current studies surrounding the risks tied to energy drinks, researchers concluded that they might be associated with a wide-ranging slew of health problem. You might already know that energy drinks can screw with your sleep, make you gain weight, or even spike your blood pressure. But overarching evidence suggests they may lead to substance abuse, mental health problems, a higher diabetes risk, tooth decay, and kidney damage, too.

6 Types Of People At Risk For Blood Clots

Blood clots aren't always a bad thing. When you cut yourself, your blood cells are supposed to clump together, which stops blood from leaking to places where it doesn't belong and kicks off the healing process. But sometimes clots form in places they shouldn't, and if they occur in a location where blood needs to keep flowing, that can spell trouble.

There are several major types of clots that can cause problems. Clots that block blood to your brain cause stroke, and ones that stop up your heart’s blood flow cause a heart attack. A clot that forms in your leg is called a deep vein thrombosis (DVT). DVTs can break away from their starting place and travel to your lungs. This is called a pulmonary embolism (PE), and can be very serious, even fatal.

Can Acupuncture Really Help You Lose Weight? Here's What You Should Know

Unless you're freaked out by needles, you might have considered acupuncture as an alternative pain relief treatment. This traditional form of Chinese medicine dates back thousands of years and is based on targeting specific trigger points in your body using small, thin needles. Research finds that it may help alleviate some health issues, like back pain, sports injuries, or even anxiety.

Modern acupuncture is mostly used to stimulate your nerves, muscles, and blood flow. And in the past few years, there's been some buzz surrounding acupuncture's ability to help you shed pounds, too. In a study published in the British Medical Journal, Korean researchers randomly assigned 91 overweight people to a group receiving treatment at five ear acupuncture points, one ear acupuncture point, or a sham control group. They found that those receiving acupuncture saw their body mass index (BMI)—a marker of their weight—decrease by roughly six percent after eight weeks.

5 Sex Positions That Guarantee She’ll Finish With a Mind-Blowing Orgasm

We hope you’ve nailed down one or two sex positions that work best for her during sex—but how you end your romp can also make a huge difference when it comes to her orgasm.

Finishing with the same position every time you have sex is like having ice cream every time you want dessert. Will she like it? Sure, but there’s a whole slew of moves to be explored—and who knows, you might find a new one that you both love?

We asked Kat Van Kirk, Ph.D., a licensed marriage and family therapist and certified sex therapist, to come up with some newer, sexier ways to top off a night in the sack. Here, five sex positions that practically guarantee an orgasm she’ll never forget.

Are You Datable or Are You a Fling?

I’ve spent a lot of time trying to make relationships out of booty calls. Because all great relationships are built on a foundation of phenomenal sex and the occasional inside joke, right? (RIGHT?!) I mean, if you’re making me orgasm multiple times a week, why wouldn’t I want to keep you around long term and try to build a solid, lasting relationship with openness, honesty, and commitment. I can totally tell you’d be good at that while your head is between my legs...

Having This Much Sex Might Make You Smarter

Okay, so there are tons of reasons why you should have sex right now. But here’s one you might not have thought of: Having frequent sex might boost your brain, researchers from Coventry University in the U.K. suggest.

In the study, researchers asked 73 older adults how often they had sex, and then had them perform tasks that tested their brain function—including things like attention, memory, fluency, language, and visuospatial abilities.

How Eating Olive Oil Can Boost Your Memory

You now have one more excellent reason to shelve the store-bought dressing in favor of the homemade stuff: Eating a diet rich in extra-virgin olive oil may protect your brain as you age, researchers from Temple University suggest.

In the study, researchers genetically modified mice to express three key characteristics of Alzheimer’s disease: memory impairment, the buildup of sticky proteins called amyloid plaques, and tangles of tau proteins. Then, when the mice reached six months of age, they had some mice eat chow supplemented with extra-virgin olive for six months, while the others ate their regular food. This food change occurred before the mice began to exhibit signs of Alzheimer’s.