We firmly believe one can never have enough workout apparel. Still, it can be a real struggle to find affordable and stylish activewear that checks all our boxes: comfortable, functional, and technical. So, we were excited to learn that Amazon is going to be dropping a few Prime Day deals early this year. In addition to up to 30% off intimates on July 13, the retailer is offering up to 40% off select activewear (including their exclusive Core 10 brand, which we love) on July 15. The Core 10 collection includes classic staples like your tried-and-true black capri, as well as edgier sports bras and leggings that are still supportive for your toughest workouts. While Prime Day doesn't *officially start until July 16*, you can shop these deals a day early. Here, our top picks—from bras and tops to leggings—that you won't want to miss.

Best Prime Day sports bra deals

• Core 10 Icon Series Ballerina Sports Bra: This crossover bra has a compression fit to minimize bounce and keep everything in its place, making it ideal for yoga, barre, and dance classes.

• Core 10 Icon Series Rebel Sports Bra: A modern, sexy update to the classic sports bra that has us adding this moisture-wicking racerback in every color to our shopping cart.

• Core 10 Icon Series Supernova Star Reflective Sports Bra: This star-printed bra is not only on trend, but the reflective technology also makes it a great choice for nighttime runs. 

• Core 10 Lattice Yoga Sports Bra: Crop tops aren't going anywhere, and we're digging this supportive bra with feminine crisscross detailing at the back.

Best Prime Day legging deals

• Core 10 Tri-Color Yoga Full-Length Legging: This fashion-forward, color-blocked legging is buttery soft, but will still hold up in your HIIT sessions.

• Core 10 Onstride High Waist Run 7/8 Crop Legging: A classic black capri never goes out of style, and this one has side panel pockets for stashing your stuff.

• 7 Goals High Waist Legging: These high-waist leggings have mesh insets for added breathability. We are especially loving them in the lipstick red hue.

• Core 10 Jogger Sweatpant: Because they're so lightweight, you can wear these effortless gym-to-street joggers year round.

Best Prime Day top and jacket deals

• Core 10 'Lighter Than Air' Performance Racerback Tank: This airy tank wicks away moisture and keeps you dry through even the sweatiest circuits. 

• Core 10 'Lighter Than Air' Performance Open Back T-Shirt: A flirty back cutout makes this seemingly average tee a stylish option for workouts (or just running errands).

• Core 10 Be Warm Thermal Fitted Run Hoodie: The ultimate lightweight thermal, this hoodie is perfect for all-season running; just pull it on and go.

What is Amazon Prime Day?

First launched back in 2015, Prime Day has become one of the biggest sales of the year, with major markdowns on everything from electronics to fitness gear to smart home gadgets (last year, the Echo was one of the most popular items sold).

The exact details of Prime Day change from year to year. This year, the sale is going to be on July 16. But you don't have to wait until then to save: Pre-sales will be announced a few days before the actual event (more on that below).

What should I know about Amazon Prime Day?

If you spot a great deal, you should definitely click "Add to cart" ASAP. Many Prime Day sales have a short time limit, and others, called "lightening deals," end when the item is out of stock. Some sales are also announced throughout the day, so keep checking back to make sure you don't miss anything.

Last year, we saw some great savings on workout and sporting gear (including must-have brands like Reebok, Adidas, and Fitbit), home and electronics (tons of Amazon devices were marked down), kitchen essentials from brands like Keurig and Calphalon, and even some rare luxury beauty discounts.

How can I find the best Amazon Prime Day deals?

The first thing you need to do is make sure you're an Amazon Prime member; all Prime Day sales are exclusive to members. You can sign up for a 30-day free trial during your first month of Prime, and it's then $119 a year. If you're not already a member, trust us, it's worth every penny: you get access to tons of freebies (music, videos, e-books, and audio streaming services), as well as free 2-day shipping on qualifying items.

Best Prime Day deals on Amazon smart home devices

• Echo Look: $100 (marked down from $200)

• Echo Show: $130 (marked down from $230)

• Echo Dot: $30 (marked down from $50)

• Echo Dot Kids Edition: $60 (marked down from $80)

• Echo Spot: $99 (marked down from $130)

• Echo Buttons: $15 (save when you buy 2)

Best Prime Day deals on electronics

• Bose SoundLinkMicro Bluetooth speaker in blue, orange, and black: $69 (marked down from $100)

• Toshiba 50-inch 4K Ultra HD Smart LED TV with HDR – Fire TV Edition: $290 (marked down from $400)

Best Prime Day deals on furniture and bedding

• Up to 40% off bestselling mattresses, furniture and rugs

• Up to 30% off furniture and decor

• AmazonBasics 7-Piece Bed-In-A-Bag: $28 for full/queen (20% off)

Best Prime Day deals on vacuums

• iRobot Roomba671 Robot Vacuum with Wi-Fi Connectivity: $250 (marked down from $350)

• Dyson V8 Absolute Cordless Stick Vacuum Cleaner: $379 (24% off)

Best Prime Day kitchen and grilling deals

• Instant Pot 6-Quart: $65 (35% off)

• KitchenAid Professional 6-Qt…

A 35-year-old French woman went to the emergency room after feeling "electric shocks" in her legs. For months, she had been experiencing worsening symptoms, which made it difficult to ride her horse and had caused repeated falls.

But at the hospital, she got an answer she probably wasn't expecting. Doctors at the Centre Hospitalier Universitaire de Dijon in Dijon, France discovered a parasite had made its way to her 9th vertebra.

According to the case report published in this week's New England Journal of Medicine, lab tests revealed the unnamed woman had a high white blood cell count, which can be a sign of an infection. An MRI tipped doctors off to a lesion on her spine, which then had to be removed surgically. After testing the lesion, doctors confirmed it was a cyst formed by the larva of a kind of tapeworm called Echinococcus granulosus, a condition known as cystic echinococcosis.

Echinococcus granulosus is most commonly found in dogs, who often get it from other animals, particularly sheep and cattle, according to the Centers for Disease Control and Prevention (CDC). For this parasite to infect a human, a person might touch an infected dog or its droppings, then touch their face, accidentally ingesting the tapeworm in the process. Or they might eat food or drink water contaminated by an infected dog's poop. 

RELATED: A Moving Bump on This Woman's Face Turned Out to Be a Live Worm

Once swallowed, Echinococcus granulosus can grow into cyst-like lesions, called cystic echinococcosis or CE, according to the CDC. "Infection can cause cystic lesions in the liver and lungs and also in the central nervous system and bones," the case report authors wrote. The slow-growing cysts may not result in any symptoms, possibly for years.

The woman in the case report had contact with cattle and had a pet cat, both possible sources of her Echinococcus granulosus infection. In addition to her surgery to remove the cyst, she was also treated with an antiparasitic medication. And there's a happy ending: "At follow-up 9 months after presentation, the patient had no residual symptoms or sign of recurrence," the authors wrote.

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Of course, it's better to never have a parasite to begin with. If you live in an area with sheep or cattle, always wash your hands thoroughly after touching dogs and before eating, the CDC recommends. It's probably also a smart idea not to eat any greens or berries gathered from fields where dogs might be doing their business.