Chinese Eggplant with Tangy Garlic Sauce Recipe, Spotlight on Chinese Eggplant, Does Cheese Fuel Nightmares, plus Maximizing the Mood Benefits of Exercise 

Eating your veggies is more fun when you tingle your tastebuds with new sensations. If you’ve never tried Chinese eggplant, you’ll be surprised at how versatile it is. It takes on the flavors of the other ingredients in a recipe, making it a wonderful vehicle for the sweet and tangy Asian sauce I’m sharing. An interesting study at the Université de Montréal found a connection between being lactose intolerant and having nightmares—it’s a real eye-opener! And when it comes to exercise, certain factors can have a big impact on how much your mood benefits from working out.

Chinese Eggplant with Tangy Garlic Sauce

• Chinese Eggplant with Tangy Garlic Sauce

  I particularly love the sauce for the eggplant—try it on chicken, pork, and Asian noodles, too. A common misconception is that olive oil is too flavorful for Asian cooking, but that myth was dispelled some time ago by Melissa Wong, a great friend of the Fresh-Pressed Olive Oil Club and a consummate foodie. You’ll read more about Melissa in the Pressing Report that comes with our next quarterly shipment of olive oils—she’s the force behind one of my amazing Australian selections. If you’re not currently a member of the Club, please click here to join now, so you don’t miss my sumptuous trio of Oz oils in September.

  Ingredients

  For the sauce:

  • 2 teaspoons cornstarch 
  • 1 tablespoon extra virgin olive oil 
  • 1-1/2 teaspoons finely minced garlic
  • 1 teaspoon finely minced ginger
  • 1/4 cup rice wine vinegar
  • 1/4 cup white sugar
  • 1/4 cup water
  • 1/2 teaspoon dried red chili flakes, more to taste
  • 2 teaspoons low-sodium soy sauce 

  For the eggplant:

  • 2 small purple or white Chinese eggplant (about 8 ounces), sliced into 1/2-inch discs
  • 1 teaspoon salt
  • 1 tablespoon cornstarch
  • 2 tablespoons extra virgin olive oil
  • 2 teaspoons minced garlic
  • 1 teaspoon minced ginger
  • 2 scallions, thinly sliced

  Directions

  Step 1

  Make the sauce: In a small dish, dissolve the cornstarch in 1 tablespoon water; set aside. Heat a saucepan over medium heat. When hot, add the olive oil, garlic, and ginger, and cook until the aromatics soften. Add in the rice wine vinegar, sugar, water, chili flakes, and soy sauce. Bring it to a boil, stirring constantly. Add in the cornstarch mixture and cook for 1 to 2 minutes more until the sauce thickens. Remove from the heat. 

  Step 2

  Make the eggplant: To extract excess water, place the eggplant discs in a colander set over a bowl and toss with the salt. After 15 minutes, rinse with cold water, then pat dry with paper towels.

  Step 3

  Heat a large skillet or flat-bottom wok. Coat the eggplant discs with the cornstarch. When the pan is hot, add the olive oil, garlic, and ginger and cook until the aromatics soften (don’t let them burn). Add the eggplant in a single layer and cook undisturbed for 5 minutes, then flip and continue cooking until brown on both sides. 

  Step 4

  Transfer the eggplant to a serving bowl and top with 1/2 cup sauce; serve the rest separately.

  Yields 4 servings

Healthy Ingredient Spotlight

Chinese Eggplant

If you don’t think you like eggplant, give this long, thin variety a try. Chinese eggplants cook up quickly and have a milder taste than the traditional, bulbous variety because they have far fewer seeds. Traditionally deep-purple hued, they’re also available in white and striped versions. There’s no need to peel them, and they can be sliced in a variety of ways, making them a versatile addition to stir-fries and other recipes.

Quick Kitchen Nugget

Prepping Eggplant

Like many other vegetables, including mushrooms, Chinese eggplant can easily absorb oil during stovetop cooking, so make sure your pan is hot before you get started. Sweating them to reduce their moisture content and giving them a light coating of cornstarch, as described in the above recipe, will keep them from turning soggy. When roasting, just lightly brush the eggplant pieces with olive oil before placing in the oven. 

For Your Best Health

Does Cheese Fuel Nightmares? 

Although folk beliefs have long held that what you eat affects how you sleep, there’s very little evidence to prove or disprove them. To investigate, researchers from the Université de Montréal in Canada surveyed 1,082 students at MacEwan University about sleep time and quality, dreams and nightmares, and any perceived association between different kinds of dreams and different foods. They also asked about participants’ mental and physical health and their relationship with food. 

About a third of respondents reported regular nightmares. Women were more likely to remember their dreams and to report poor sleep and nightmares, and nearly twice as likely as men to report a food intolerance or allergy. About 40% of participants said that they thought eating late at night or specific foods affected their sleep, and roughly 25% thought particular foods could make their sleep worse. People who ate less healthily were more likely to have negative dreams and less likely to remember dreams. 

Most participants who blamed their bad sleep on food thought that sweets, spicy foods, or dairy were responsible. Only a comparatively small proportion—5.5% of respondents—felt that what they ate affected the tone of their dreams, but many of these people said they thought sweets or dairy made their dreams more disturbing or bizarre.

When the authors compared reports of food intolerances to reports of bad dreams and poor sleep, they found that lactose intolerance in particular was associated with gastrointestinal symptoms, nightmares, and low sleep quality. It’s possible that eating dairy activates gastrointestinal disturbance and the resulting discomfort affects people’s dreams and the quality of their rest.

“Nightmares are worse for lactose-intolerant people who suffer severe gastrointestinal symptoms and whose sleep is disrupted,” said Tore Nielsen, PhD, lead author of the article, which was published in Frontiers in Psychology. “This makes sense, because we know that other bodily sensations can affect dreaming. Nightmares can be very disruptive, especially if they occur often, because they tend to awaken people from sleep in a dysphoric state. They might also produce sleep avoidance behaviors. Both symptoms can rob you of restful sleep. These new findings imply that changing eating habits for people with some food sensitivities could alleviate nightmares. They could also explain why people so often blame dairy for bad dreams …We are routinely asked whether food affects dreaming, especially by journalists on food-centric holidays,” said Dr. Nielsen. “Now we have some answers.”

Besides the robust link between lactose intolerance and nightmares, however, it’s not clear how the relationship between sleep and diet works. It’s possible that people sleep less well because they eat less well, but it’s also possible that people don’t eat well because they don’t sleep well, or that another factor influences both sleep and diet. Further research will be needed to confirm these links and identify the underlying mechanisms. In the meantime, the researchers suggest that simple diet tweaks, especially ditching late-night cheese, could turn scary sleep into sweet rest.

Fitness Flash

Maximizing the Mood Benefits of Exercise 

Movement helps your mood, but it’s not one-size-fits-all. Researchers have known that exercising for fun, with friends, or in enjoyable settings brings greater mental health benefits than simply moving for chores or obligations. But a recent study done at the University of Georgia suggests that it’s not just physical movement that affects mental health. Their findings emphasize that context—who you’re with, why you’re exercising, and even the weather—can make or break the mood-boosting effects and may be more important than the actual amount of exercise you get.

“Historically, physical activity research has focused on how long someone exercises for or how many calories were burned,” said Patrick O’Connor, PhD, co-author of the study and a professor in the Mary Frances Early College of Education’s department of kinesiology. “The ‘dose’ of exercise has been the dominant way researchers have tried to understand how physical activity might influence mental health, while often ignoring whether those minutes were spent exercising with a friend or as part of a game.”

While research shows that leisure-time physical activity, like going for a run, taking a yoga class, or biking for fun, correlates with better mental health outcomes, these benefits may vary significantly depending on the environment and circumstances surrounding the activity, according to the researchers. They reviewed three types of studies: large-scale epidemiological studies that examined health patterns in populations, randomized controlled trials where some groups received exercise treatments and others did not, and a much smaller but growing set of investigations into “contextual factors.” For instance, multiple studies have found that people who engage in regular leisure-time physical activity tend to report lower levels of depression and anxiety. But it’s less clear for other forms of activity like cleaning the house or working for a lawn care company. Where the evidence is thinnest but potentially most important is in understanding contextual factors. 

Context may matter as much as the intensity or amount of physical activity. “For example, if a soccer player runs down the field and kicks the game-winning ball, their mental health is fantastic,” Dr. O’Connor said. “In contrast, if you do the exact same exercise but miss the goal and people are blaming you, you likely feel very differently. Anecdotes such as these show how context matters even when people are performing a similar exercise dose.” In other words, the same physical activity can feel very different depending on who the activity was done with, as well as where, when, and how. 

Context can range from peer dynamics and instructor style to external conditions like weather or time of day. “If you’re outside and it’s hot, and you’re having to walk to work, that’s part of the context,” he said. “Or if you go and take a group exercise class—some instructors you really like, and some you don’t. So, that’s also part of the context. If we’re trying to help people’s mental health with exercise, then not only do we need to think about the dose and the mode, we also need to ask: What is the context?”

Numerous randomized controlled trials have shown that adopting regular exercise routines boosted mental health, especially for people with mental health disorders. However, these studies were typically based on small, short-term, and homogenous samples, so the results likely aren’t generalizable to larger, more diverse groups. “The average effects on mental health are small across all the randomized controlled studies of exercise, and that’s partly because most of the studies focused on people who were not depressed or anxious—you do get bigger effects in those studies,” explained Dr. O’Connor. “We’re communicating to scientists that larger and longer-term controlled studies are needed to make a compelling case whether exercise does, or does not, truly impact mental health.”

For Dr. O’Connor, the takeaway is already clear: It’s not just movement that matters. It’s the meaning, the setting, and the experience surrounding the activity that determines the impact of exercise on mental health.

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Muffaletta-Style Olive Salad Recipe, Spotlight on Anchovies, Roasting Bell Peppers, Napping: A Sleep-Cycle Foe and Walk This Way

One of the classic New Orleans specialties, muffaletta, is a delectable mix of meats and cheeses served on crusty bread. But its uniqueness comes from the olive salad that fills the hollowed-out top half of the loaf. I always make more than I need because it’s such a tasty condiment, as well as a great topping for grilled bread slices, a wonderful dressing for green salads, and a “sauce” for grilled fish, chicken, and other proteins. 

Most people don’t realize that good sleep is one of the building blocks of health and fitness or that an innocent nap can be a roadblock to restorative ZZZs. Even more important, needing to nap often can be a sign of a health condition. Something else important for wellness is good posture—remember Mom always telling you to stand up straight? Scientists have developed special shoe sensors that may soon help you follow her directive more easily! 

Muffaletta-Style Olive Salad

• Muffaletta-Style Olive Salad

  This flavorful mix of peppers, olives, and onions defines the muffaletta sandwich—you can choose a mix of your favorite meats and cheeses, like capicola, prosciutto, salami, mozzarella, and provolone, but don’t leave off the olive salad! A batch will stay fresh in the fridge for about a week.

  Ingredients

  • 1 small red onion, peeled and quartered
  • 1 cup pitted kalamata olives
  • 1 cup pitted Castelvetrano olives
  • 2 cups frozen artichoke hearts, thawed
  • 8 Italian hot peppers
  • 1 large red bell pepper, roasted and seeded (see “Quick Kitchen Nugget” in weekly newsletter)
  • 6 tablespoons capers, drained
  • 4 anchovy fillets or 1 tablespoon anchovy paste
  • 1 tablespoon dried oregano 
  • 1 teaspoon crushed red pepper flakes
  • 1/4 cup extra virgin olive oil
  • 1/4 cup best-quality red wine vinegar

  Directions

  Step 1

  To the bowl of a large food processor add the onions, olives, and artichokes and pulse until coarsely chopped. Add in the hot peppers, bell pepper, capers, anchovies, oregano, and red pepper flakes and pulse again until finely chopped (don’t let the mixture turn into a paste).

  Step 2

  Transfer to a large bowl and fold in the olive oil and vinegar. Let sit for 30 minutes so that the flavors can meld before using or refrigerating.

  Yields about 4 cups

Healthy Ingredient Spotlight

Anchovies

Anchovies might be the least-appreciated fish among Americans. An essential flavoring agent for dishes such as Caesar salad and puttanesca sauce, anchovies are typically sold here jarred or canned. They’re used in many cuisines, but around the Mediterranean, grilled or breaded fresh anchovies, briny yet mild tasting, are often on the menu. 

It’s the salt curing used to preserve anchovies that intensifies their taste—their saltiness lends depth of flavor to cooked dishes without imparting the full-throated taste of an anchovy eaten right out of the can or jar. Indeed, they quickly dissolve right into the other ingredients. Look for tins of anchovies from Italy. If they are packed in olive oil, drain them well before using.

Quick Kitchen Nugget

Roasting Bell Peppers

Whenever I’ve got my outdoor grill going, I’ll throw on two or three bell peppers, char them well, then peel, deseed, and store them in olive oil in the fridge to use for the coming week. When you need a roasted pepper without turning on the grill, the oven is the way to go. Here’s how.

Preheat your oven to 400°F. Grab a rimmed sheet pan and line it with high-heat parchment paper (it will be marked as safe to use up to 400°F or higher). Place one or more bell peppers on their sides and lightly drizzle with olive oil. Roast for 20 minutes, flip, and roast for another 20 minutes, or until the skin chars and wrinkles. Take them out of the oven and, with your oven mitts still on, fold up the parchment to make a packet that seals in the peppers. This creates steam, which will make it easy to peel off the skins. Wait 15 minutes, then unwrap the parchment and remove the skins. Transfer the peppers to a cutting board, halve them, cut out the stems, and use a spoon to remove the seeds. 

For Your Best Health

Napping: A Sleep-Cycle Foe

According to a Pew Research Center survey, about 30% of American adults take one or more naps per week, with more than 50% of adults age 80 and older reporting that they had napped in the past day. Among every other age group in the survey, including both young people ages 18 to 29 and older people ages 70 to 79, about a third said they napped in the past 24 hours.

But is all the snoozing good for you? Maria V. Suurna, MD, professor of clinical otolaryngology at the University of Miami Miller School of Medicine and director of sleep surgery at UHealth, the University of Miami Health System, set the record straight on the pros and cons of napping.

“Short naps of no more than 30 minutes during the day can help restore alertness and productivity, making you feel more awake. It’s similar to the effect of drinking a cup of coffee. There’s nothing wrong with taking a nap, but it’s important not to make it too long. It may be helpful to set an alarm for 30 minutes, especially if it’s late in the afternoon, to avoid interfering with your nighttime sleep,” said Dr. Suurna. “If you have trouble sleeping at night, it’s generally not recommended to nap during the day, as it can make it harder to fall asleep and get a full 7-9 hours of sleep at night. 

“If you feel excessively sleepy during the day, often falling asleep during meetings or, more dangerously, while driving, it’s important to consult a sleep doctor. Needing to take multiple naps throughout the day could be a sign of sleep problems such as sleep apnea, hypersomnolence, or other sleep disorders. A medical evaluation can help identify and address any underlying issues,” she added.

As a reminder, you may be able to boost nighttime sleep quality with these good sleep habits: 

• Review your medications with your doctor, as some may have sedating side effects while others may act as stimulants, making it harder to stay asleep. 
• Go to bed and wake up at the same time every day.
• Avoid electronics, TV, and other screens starting at least 30 minutes before bedtime.
• Reduce exposure to bright lights in the evening.
• Keep your bedroom cool, dark, and quiet.
• Avoid alcohol and caffeine starting in the early afternoon, as they can interfere with sleep quality and contribute to insomnia.

Fitness Flash

Walk This Way

A new smart insole system that monitors how people walk in real time could help improve posture and provide early warnings for conditions from plantar fasciitis to Parkinson’s disease, according to a study published in the journal Science Advances. Constructed using 22 small pressure sensors and fueled by small solar panels on the tops of shoes, the system offers real-time health tracking based on how a person walks, which is a biomechanical process as unique as a human fingerprint.

This data can then be transmitted via Bluetooth to a smartphone for a quick and detailed analysis, said Jinghua Li, PhD, co-author of the study and an assistant professor of materials science and engineering at The Ohio State University. “Our bodies carry lots of useful information that we’re not even aware of,” said Dr. Li. “These statuses also change over time, so it’s our goal to use electronics to extract and decode those signals to encourage better self-healthcare checks.”

It’s estimated that at least 7% of Americans suffer from ambulatory difficulties, often having a hard time with basic activities that include walking, running, and climbing stairs. While efforts to manufacture a wearable insole-based pressure system have risen in popularity in recent years, many previous prototypes were met with energy limitations and unstable performances. To overcome the challenges of their precursors, Dr. Li and Qi Wang, the lead author of the study and a current PhD candidate at Ohio State, sought to ensure that their wearable is durable, has a high degree of precision when collecting and analyzing data, and can provide consistent and reliable power. 

“Our device is innovative in terms of high resolution, spatial sensing, self-powering capability, and its ability to combine with machine learning algorithms,” she said. “So, we feel like this research can go further based on the pioneering successes of this field.”

Their system is also unique because of its use of AI. Thanks to an advanced machine learning model, the wearable can recognize eight different motion states, from static ones like sitting and standing to more dynamic movements such as running and squatting. Since the materials used for the insoles are flexible and safe, the device, much like a smartwatch, is low risk and appropriate for continuous use. For instance, after the solar cells convert sunlight to energy, that power is stored in tiny lithium batteries that don’t harm the user or affect daily activities.

Because of the distribution of sensors from toe to heel, the researchers could see how the pressure on parts of the foot is different in activities such as walking versus running. During walking, pressure is applied sequentially from the heel to the toes, whereas during running, almost all sensors are subjected to pressure simultaneously. In addition, during walking, the pressure application time accounts for about half of the total time, while during running, it accounts for only about a quarter.

The smart insoles could support gait analysis to detect early abnormalities associated with foot pressure-related conditions like diabetic foot ulcers, musculoskeletal disorders such as plantar fasciitis, and neurological conditions such as Parkinson’s disease.

Because the system uses machine learning to learn and classify different types of motion, it offers opportunities for personalized health management, including real-time posture correction, injury prevention, and rehabilitation monitoring. Customized fitness training may also be a future use, the researchers said. “The interface is flexible and quite thin, so even during repetitive deformation, it can remain functional,” said Dr. Li. “The combination of the software and hardware means it isn’t as limited.”

Researchers expect the technology will likely be available commercially within the next three to five years. Next steps to advance the work will be aimed at improving the system’s gesture recognition abilities, which, according to Dr. Li, will likely be helped with further testing on more diverse populations. “We have so many variations among individuals, so demonstrating and training these fantastic capabilities on different populations is something we need to give further attention to,” she said.

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