Chrissy Teigen is known for being totally candid about the personal aspects of her life. From getting real about postpartum depression to her vaginal steaming routine, she's definitely not one to hold back. But her latest beauty treatment may just be one of her most honest.

Last night, Teigen shared a video of herself receiving Botox injections in her armpits as a way to combat her “excessive sweating.” In the video, she gives a shout out to Jason Diamond, MD, a Beverly Hills-based plastic surgeon, while calling the procedure the “best move” she “has ever made.”

RELATED: You'll Definitely Relate to Chrissy Teigen's Hilarious Blackhead Removal Videos

“I can wear silk again without soaking woohoo!” she added in her caption. 

While Teigen hasn't revealed an exact diagnosis (she could simply just sweat a lot—feel that, girl!), excessive sweating can be a symptom of hyperhidrosis—and Botox injections in the armpits are often a common treatment for the condition. 

RELATED: Hilarious Proof That Chrissy Teigen Isn't Ashamed of Her Stretch Marks

"What’s happening in hyperhidrosis is the nerves that send signals to sweat glands to sweat are way too chatty, and we don’t really know why that is," Adam Friedman, MD, associate professor of dermatology at the George Washington University School of Medicine & Health Sciences, previously told Health. Medications and Botox work by blocking those nerve signals that are responsible for activating the sweat glands, he explained. 

RELATED: Chrissy Teigen Is 'Still Super Insecure' About Her Post-Baby Body as She Reveals Her Stretch Marks

The good news? Botox injections aren't specifically meant for those with a hyperhidrosis diagnosis—even if you just want to rock a silk dress, sweat-free (like Teigen), you can go ahead and opt for the procedure. "You can absolutely get Botox under your armpits, even if you don't have hyperhidrosis," Debra Jaliman, MD, a New York City–based dermatologist and author of Skin Rules, tells Health. "Some people may be allergic to antiperspirants, so for them, this is a good—and safe—alternative."

As for the pain that might come with the procedure, Teigen said she didn't feel anything. "Truly didn't hurt at all" she wrote in a tweet later to a fan asking about the pain. "But I also do laser hair removal there so my pain tolerance might be quite high," she added.

One small drawback: Botox only prevents sweating in the area that it is specifically injected, Dr. Jaliman added. That means if you're just getting the treatments in your armpits, you can still sweat other places (hi, underboob sweat!), so one round of Botox won't solve all of your sweaty summer woes. Plus, the procedure only lasts about six to seven months, says Dr. Jaliman, so be ready to make multiple appointments to keep your underarms dry for good. 

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If you’re an older woman, your heart disease risk might be shaped by the shape of your body.

Researchers report that if you look more like an apple than a pear, your chances of heart trouble are heightened, even if you are a normal weight.

Different fat distributions

Interestingly, women who carried their weight in their legs had a significantly lower risk of cardiovascular disease, the study authors added, though the study did not prove a cause-and-effect relationship.

“Our findings suggest that postmenopausal women, despite having normal weight, could have a varying risk of cardiovascular disease because of different fat distributions around either their middle or their legs,” said study author Dr Qibin Qi, an associate professor at the Albert Einstein College of Medicine in New York City.

For the study, researchers gathered data on nearly 162 000 postmenopausal women who took part in the Women’s Health Initiative study between 1993 and 1998. The women were followed until February 2017.

The investigators found that women whose fat was stored mostly around the middle (apple-shaped) had almost twice the risk of heart disease or stroke, compared with women whose weight was stored in their legs.

On the flip side, that risk was 40% lower in women whose weight was mostly in the legs, compared to those who had the least weight in their legs.

Findings may not apply to younger women

The greatest risk of heart disease was among women whose highest percentage of fat was around their middle and the lowest in their legs. In fact, the risk was more than three times the risk of women with the least body fat and the most leg fat, the researchers found.

Besides weight, people need to pay attention to where the weight is, Qi said.

The researchers calculated that if 1 000 women in the study reduced their belly fat from more than 37% to less than 27%, but kept their leg fat the same, six fewer cases of cardiovascular disease would occur each year.

And if 1 000 women in the study kept their belly fat the same and increased leg fat from less than 42% to over 49%, three cases of cardiovascular disease would be prevented each year.

Qi cautioned, however, that because the study was done among postmenopausal women, the findings might not apply to younger women or men.

The report was published in the European Heart Journal.

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Doctors may be as confused about what dietary advice to pass on to their patients as the patients themselves – even when it comes to protecting against heart disease through diet, according to US, British and Italian reports.

Part of the problem is the continuing lack of nutrition education offered in medical schools. Another is the lack of time doctors have to spend with patients.

Which unsaturated fat is best?

But one piece of information that is getting through is to eat less saturated fat and more unsaturated fat – a better replacement strategy than eating “low-fat” packaged foods, which are actually very high in refined carbohydrates, such as sugar.

But which unsaturated fats should you choose from?

First, know that there are two main types: monounsaturated and polyunsaturated.

Most foods high in unsaturated fats contain both, though some have more of one than the other. For instance, avocados, nuts and olive and canola oils are higher in monounsaturated fats.

You may be familiar with polyunsaturated fats containing the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

You may have also heard about research disproving the heart-health effects of omega-3 supplements. However, the body still needs omega-3s for good health, and getting them directly from food, not capsules, is important.

Too many omega-6s can be problematic

EPA and DHA are found primarily in fatty fish, so aim to eat 8 ounces (roughly 230g) of seafood a week, with choices like salmon, mackerel, sardines, anchovies and herring.

You can also get the omega-3 alpha-linolenic acid (ALA) from some plant-based foods, primarily walnuts, sunflower seeds and oil, sesame and pumpkin seeds, and chia and flax seeds. The body doesn’t use ALA as easily as it does EPA and DHA, but it’s still valuable.

Less well-known are the omega-6 fatty acids.

They, too, are in many nuts and seeds, but also in corn and soybean oils, heavily used in packaged foods like chips.

Getting too many omega-6s can be a problem, especially if they outweigh the omega-3s in your diet, another reason to limit processed foods.

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White older women in south-west England appear most likely to contract the disease, a study suggests.

They say tackling tooth decay – which affects a quarter of five-year-olds – is a priority.

A fisherman’s curiosity led to identification of the correlation between microbial communities in recreational freshwater locales and seasonal environmental changes, according to a team of researchers from Penn State.

Having a hernia repaired, or an appendix or gallbladder removed, hurts. And for the past two decades, patients having these common operations in the U.S. have gone home from the hospital with prescriptions for dozens of opioid pills to ease that pain.

It is well known that men benefit reproductively from having multiple spouses, but the reasons why women might benefit from multiple marriages are not as clear. Women, as a result of pregnancy and lactation, can’t reproduce as fast as males.

As the CBD craze sweeps the United States – and the world – some users may wonder whether the cannabis extract can make them fail a drug test. A preliminary study suggests the answer is “no” – at least if the CBD is pure.

Researchers found that CBD, or cannabidiol, did not react with either of two commercially available tests used to screen for marijuana use. However, another cannabis compound – cannabinol (CBN) – did.

CBD and CBN are two of many chemicals found in cannabis plants. They differ from THC, the source of the marijuana “high.” CBD is present in marijuana but more abundant in hemp – cannabis plants that have little THC. CBN, meanwhile, is a THC derivative.

If you think CBD products are suddenly everywhere, you’re right: There has been an explosion since last year, when Congress lifted a decades-old ban on growing hemp.

Licensed farmers can now grow the plant, as long as it contains less than 0.3% THC. The result? CBD is turning up in everything from oils and lotions to coffee and cookies.

CBD is promoted for easing anxiety, insomnia and chronic pain, among other ailments. The jury is still out on those uses, but there is some science behind the compound. Last year, the US Food and Drug Administration (FDA) approved a drug containing pure CBD – called Epidiolex – for treating certain rare, severe seizures.

CBN, meanwhile, is far less famous than its cousin, but it is used in products marketed as sleep aids.

Given that context, it’s important to understand how the compounds interact with drug screening tests, said Grace Kroner, lead researcher on the new study.

She and her colleagues at the University of Utah Health Sciences Center in Salt Lake City spiked three batches of urine samples with CBD, CBN and two other cannabis compounds – cannabichromene and cannabigerol.

The researchers tested each batch with two tests commonly used for THC screening. CBN reacted with one, while the other three compounds triggered no false-positives.

Depends on the purity

Why did only one test pick up CBN? The tests are known immunoassays – which means they use antibodies to detect drugs. Kroner explained that there are slight differences in the antibodies that test manufacturers use – so it’s possible to get different results.

While the findings may be a relief to some CBD users, there is a big caveat: The researchers used pure CBD. In the real world, CBD products are largely unregulated and may contain other compounds due to processing.

According to Robert Fitzgerald, a professor at the University of California, San Diego’s Center for Advanced Laboratory Medicine, “It would depend on the purity of the product.”

On the positive side, he noted, immunoassays are only screening tests. They would be followed up by “confirmatory testing” that does distinguish THC from other compounds. But you could still have a problem if your cannabis product was contaminated with THC, Fitzgerald said.

Legally, Kroner noted, CBD products should only be produced from hemp plants with no more than 0.3% THC. But there’s no way for consumers to know for sure what’s in the products they buy.

A 2017 study found that about seven out of 10 CBD products did not contain the amount of cannabidiol stated on the label. And about one in five contained THC.

A false-positive on a drug test could have implications for people at work, and in their medical care. For example, some health care organizations do not allow patients to start opioid painkillers if they use marijuana.

It all points to the importance of taking “cross-reactivity” into account when a drug screening test comes back positive, Kroner said.

“Confirmatory testing should be done before any clinical decisions are made,” she said.

What should you do if you use any of these products and have a drug test coming up?

The simplest course is to refrain for a while, according to Kroner. But she also advised being up front about your CBD or CBN use – or any supplement use, for that matter – so that your test results can be interpreted in that light.

Kroner reported the findings at the annual meeting of the American Association for Clinical Chemistry in Anaheim, California. Studies presented at meetings are generally considered preliminary until they are published in a peer-reviewed journal.

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More than 1.4 million over-65s in England lack vital support, campaigners say.