Month: July 2021

What can you add to a wide variety of foods, from cereals to salads, that’s crunchy, filling, and flavorful — and good for your heart? The answer is nuts. While all varieties of nuts are chock full of important nutrients, walnuts may be especially good for protecting cardiovascular health, according to a recent study in the journal Circulation that supports earlier research in this realm.

What is the study?

The Walnuts and Healthy Aging study is a randomized controlled trial supported by a grant from the California Walnut Commission that tracked healthy older adults living in two communities. For the study, researchers recruited 708 adults ages 63 to 79 living in Loma Linda, California, or Barcelona, Spain, and split them into two groups. One group added about a quarter-cup to a half-cup of walnuts to their daily diet for two years, while the other group ate no walnuts.

After two years, average levels of harmful low-density lipoprotein (LDL) cholesterol were modestly lower in the walnut group. Of note: nearly a third of the participants were taking cholesterol-lowering statins, so the average cholesterol levels of both groups were already in a normal range. The researchers speculate that the cholesterol-lowering benefits from walnuts might be more pronounced in people with elevated cholesterol levels. There is no way to know from the current data if this is true.

“This recent trial confirms what earlier studies have found, namely, that that adding walnuts to your diet appears to improve your cholesterol levels,” says Dr. Deirdre Tobias, an obesity and nutritional epidemiologist at Harvard-affiliated Brigham and Women’s Hospital. The new trial also lasted much longer than past walnut studies. However, it’s not clear what foods were being replaced by the walnuts in the participants’ diets, which might affect the magnitude of benefits the researchers saw. For example, replacing unhealthful, ultra-processed snacks with walnuts would presumably have a greater benefit than a lateral move from healthy options to walnuts, Dr. Tobias explains.

Lower levels of harmful blood fats, no additional weight

The researchers also analyzed the concentration and size of the LDL particles. Smaller, more dense LDL particles are more likely to trigger atherosclerosis, the buildup of fatty plaque inside arteries that’s the hallmark of most cardiovascular disease that results in heart attacks or strokes.

The walnut eaters had lower levels of these smaller particles. They also had decreased levels of intermediate-density lipoproteins (IDL), which are also linked to a rise in cardiovascular-related risks. And even though a quarter-cup of chopped walnuts is about 190 calories (and a half-cup is about 380 calories), the walnut eaters did not pack on any extra pounds.

Earlier research has found that people who eat nuts regularly are less likely to have heart disease, and many studies have focused specifically on walnuts. In 2018, Dr. Tobias and colleagues published a meta-analysis and systematic review of studies that examined how eating walnuts affects a person’s blood lipids and other heart-related risks. The review included 26 controlled trials involving a total of more than 1,000 people. It found that walnut-enriched diets led to lower total cholesterol, LDL cholesterol, and triglycerides, the most common form of fat in the bloodstream.

What’s special about walnuts?

Although all nuts are good sources of healthy unsaturated fats, walnuts are especially rich in alpha-linolenic acid (ALA). This is a precursor to the omega-3 fatty acids EPA and DHA found in fatty fish that are known for their heart-protecting powers. Our bodies convert ALA to EPA and DHA, although the efficiency of this varies from person to person.

What’s more, walnuts are usually eaten raw. So they have greater antioxidant abilities than nuts that are usually eaten roasted. (Antioxidants help prevent or reduce the artery-damaging oxidation that contributes to heart disease).

Adding walnuts to your diet

It’s worth noting that the FDA allows a qualified health claim on some nuts (including walnuts). Foods made with them are permitted to include the following statement: “Eating a diet that includes one ounce of nuts daily can reduce your risk of heart disease.” An ounce of walnuts is about a handful, or one-quarter cup.

You can sprinkle walnuts onto oatmeal or other hot or cold cereals; stir them into pancakes, muffins, or other quick breads; or toss them with vegetables or into salads. If high cholesterol is a health concern for you, there are other foods that may help lower your LDL cholesterol and boost your heart health.

Insomnia is a sleep disorder that affects approximately 10% of adults in the United States. It is characterized by difficulty with falling asleep, staying asleep, and/or waking up too early, at least three times per week for a period of three months or more. Contrary to some beliefs that insomnia will get better by itself over time, evidence suggests that it will persist if not actively treated. In one study, 37.5% of patients with insomnia reported that their insomnia was still a problem five years later.

What are common treatment options used for insomnia?

Perhaps the most common nonpharmacological intervention used for insomnia is something called sleep hygiene. It describes a series of good sleep habits to engage in (such as keeping your bedroom quiet at night) and ones to avoid (turning off electronic devices before going to bed).

Unfortunately, as many patients know, sleep hygiene is not a very effective treatment for insomnia when implemented by itself. When sleep hygiene is used as one part of a multimodal approach, such as cognitive behavioral therapy for insomnia, it can be an effective complement to other important strategies. While cognitive behavioral therapy for insomnia is recommended as the gold-standard treatment by the American Academy of Sleep Medicine and the American College of Physicians, finding a clinician with expertise in behavioral sleep medicine can be a challenge — even via telemedicine.

Integrative treatment approaches are popular

Many people are interested in pursuing other treatment options for insomnia that do not involve prescription medications. Increasing evidence suggests that a number of approaches may be beneficial, including mindfulness-based practices and mind-body movement practices like yoga. Some people may use dietary supplements such as valerian, melatonin, chamomile, and cannabis, though evidence is more limited regarding their efficacy. You should always tell your doctor if you are taking any dietary supplements, as these may interact with other prescription medications.

An integrative option for people with insomnia and a psychiatric disorder

Insomnia is a common issue for people with a psychiatric disorder, possibly because of overlapping neurobiology. For example, someone with insomnia is 10 times more likely than someone without insomnia to also have depression. Among patients receiving psychiatric care, compression and weight have been used therapeutically. It has been hypothesized that the calming (and possibly sleep-promoting) effects of such an approach may be similar to what is experienced with acupressure or massage.

A team of researchers at the Karolinska Institute in Stockholm, Sweden conducted a study to determine whether a weighted metal chain blanket could improve insomnia symptoms compared to a light plastic chain blanket. They recruited outpatients with elevated insomnia symptoms who were being treated for one of several mood disorders: major depressive disorder, bipolar disorder, generalized anxiety disorder, or attention deficit hyperactivity disorder (ADHD).

Participants were randomly assigned to receive either a weighted metal chain blanket or a light blanket with plastic chains that were sewn on, which were the same shape and size as the metal chains on the weighted blanket. Those who were provided with a weighted metal chain blanket first tried on an 8-kilogram (17.6 pound) blanket. If this was too heavy, a 6-kilogram (13.2 pound) blanket was then provided. Over a four-week period, their sleep was assessed using surveys and a wrist-based device called an actigraph.

What did the researchers learn?

Participants who used the weighted metal chain blanket reported that their insomnia symptom severity declined significantly, while those who had used the light blanket did not experience such notable improvements. Furthermore, depressive symptoms and anxiety symptoms decreased much more for those who used the weighted blanket than those who used the light blanket. This secondary finding is consistent with other work showing that interventions designed to treat insomnia can have a meaningful impact on mood.

These promising findings are tempered by data showing that there were no significant improvements to key insomnia metrics, such as the amount of time spent awake after falling asleep, when sleep was tracked objectively using the actigraph. Other research conducted in children has also failed to demonstrate that weighted blankets significantly change sleep outcomes when measured using an actigraph.

Should you buy a weighted blanket?

While these findings are intriguing, more research is needed. It is important to note that there is a very real placebo effect for insomnia symptoms. This means that if you are someone who believes a weighted blanket could have a positive effect on your sleep tonight… well, it's quite possible that it will. For healthy adults, weighted blankets are considered safe as long as the individual can lift the blanket off when necessary. Because sleep is such a subjective experience, the cost of a weighted blanket may be money well spent — as long as you don’t forget that there are other options available to treat insomnia, with much more research data to support their effectiveness.

Migraine is a common and disabling headache disorder. Painful migraine headaches frequently affect people in their most productive years of life, between the ages of 18 and 44. Many common medication treatments for migraine may cause side effects that are difficult to tolerate, and can lead people to not take their medications as recommended, or to stop taking them altogether. A recent study suggests that up to 20% of patients with migraine have used opioids to treat their pain in the past year. Therefore, there is a great need for better and more tolerable treatments for people who have migraines.

Research has shown that combining behavioral treatments with preventive medication treatments works better for preventing headaches than medications alone. Mindfulness practice has also been associated with improvements in individuals with chronic pain, including migraine. Mindfulness is the mind-body treatment that involves purposely focusing one’s attention on the present momentary awareness and accepting it without judgment.

Stress is a well-known trigger for migraine. Moreover, stressful events have been associated with people experiencing more frequent or chronic migraines versus having them occasionally. Mindfulness can result in stress reduction, reduced emotional response to stress, and improved general happiness. In patients with migraine, pain severity and unpleasant symptoms can be reduced with this treatment.

Mindfulness can potentially strengthen emotional and cognitive control of pain by helping to train someone with migraine to reassess their pain in a nonjudgmental way and modify their evaluation of the pain. In addition, mindfulness practices can help to control depression, anxiety, and pain catastrophizing (an exaggerated negative feeling toward pain experiences), which can play a role in chronic migraine.

The study

In a recent study published in JAMA, a group of researchers investigated whether mindfulness-based stress reduction may provide benefit for people experiencing migraine. The study randomly assigned half of participants with migraine to the mindfulness treatment and the other half to only headache education.

The mindfulness-based stress reduction treatment incorporated eight weeks of two-hour, in-person classes, which included sitting and walking meditation, body scanning (sequential attention to parts of the body), and mindful movement (bodily awareness during gentle stretching using hatha yoga), bringing attention back to the natural rhythm of the breath. In addition, the study participants were encouraged to build their capacity to address physical and mental perceptions of their pain, and they were provided audio files for at-home practice.

The headache education treatment included a standardized protocol of eight weeks of two-hour, in-person classes that contained education about the biological, psychological, and environmental processes associated with migraines, headache triggers, and stress. The patients were also given time for questions, answers, and discussion during each class.

The results

The researchers demonstrated that mindfulness-based stress reduction treatment significantly improved people’s disability, quality of life, self-efficacy, pain catastrophizing, and depression compared to patients who only had headache education. Reductions in monthly migraine days were observed in those with mindfulness-based stress reduction treatment, but were not significantly different from those receiving headache education. The authors of the study explain that the reason they could not demonstrate improvement in the headache frequency could be the use of an active control group such as headache education, which itself may result in improvement of headache frequency.

Most importantly, the study demonstrated that mindfulness-based treatments can reduce the burden of migraine. With mindfulness, the participants of the study may have learned a new way of processing pain that may have a significant effect on their long-term health. The results of this study have major implications for both patients and clinicians, and the research can support a holistic, integrative treatment plan for patients with migraine, with less emphasis on nonmedical treatments.

What you can do

Many healthcare providers, including headache specialists, pain specialists, neurologists, and primary care physicians, have started to incorporate mindfulness-based treatment in their practices, or they have sought mindfulness-based programs or specialists for their patients.

There are also many ways for patients with migraine to practice mindfulness at home. Patients with migraine can integrate some of the following mindfulness-based practices in their daily life, including during a migraine headache:

• Accept yourself, your present moment.
• Lie on your back or in a comfortable position with no distractions, and direct your awareness to your body and breathing. Scan your body and observe your feet, legs, hands, arms, and other parts of your body.
• Try to sit down in a comfortable and quiet place, close your eyes, take a deep breath. Try to do breathing exercises, paying attention to the sensations of your breath while inhaling and exhaling.
• Sitting or walking meditation done outside in nature may be very relaxing. Focus on the experience of walking, being aware of the sensations of standing and the subtle movements that keep your balance.

Resources

There many are apps and quality resources for mindfulness and migraine learning and practice. Here are few online resources to explore:

Body scan mindfulness exercise for pain (Harvard Health Publishing)

Mindfulness Meditation for Migraine (American Migraine Foundation)

Mindfulness series for Migraine & Headache Disorders (Miles for Migraine)

Mindfulness and Migraine (National Headache Foundation)

During the first year of life, naps are crucial for babies (who simply cannot stay awake for more than a couple of hours at a time), and crucial for parents and caregivers, who need breaks from the hard work of caring for an infant.

But as children become toddlers and preschoolers, naps aren’t always straightforward. Children often fight them (following the “you snooze you lose” philosophy), and they can conflict with daily tasks (such as school pick-up when there are older siblings) or lead to late bedtimes.

Here are some tips for making naps work for you and your child — and for knowing when they aren’t needed anymore.

Making naps work for your baby

Most infants will take at least two naps during the day, and early in toddlerhood most children will still take both a morning nap and an afternoon nap. Naps are important not just for physical rest and better moods, but also for learning: sleep allows us to consolidate new information. As children get older, they usually drop one of the naps, most commonly the morning nap.

Every child is different when it comes to napping. Some need long naps, some do fine with catnaps, some will give up naps earlier than others. Even within the same family, children can be different. A big part of making naps work is listening to and learning about your child’s temperament and needs. Otherwise, you can end up fighting losing battles.

The needs of a parent or caregiver are also important: everyone needs a break. Sometimes those breaks are particularly useful at specific times of the day (like meal prep time). While you can’t always make a child be sleepy at the most convenient time for you, it’s worth a try — which leads me to the first tip:

Schedule the naps. Instead of waiting for a child to literally drop and fall asleep, have a regular naptime. We all do better when our sleep routines are regular, even adults. If you can, put the child down awake (or partially awake). Learning to fall asleep without a bottle or a breast, or without being held, is a helpful skill for children to learn and can lead to better sleep habits as they grow.

A couple of scheduling notes:

• If you need a child to fall asleep earlier or later than they seem to do naturally, try to adjust the previous sleep time. For example, if you need an earlier morning nap, wake the child up earlier in the morning. It may not work, but it’s worth a try.
• Naps later in the afternoon often mean that a child won’t be sleepy until later in the evening. That may not be a problem, but for parents who get tired early or need to get up early, it can be. Try to move the nap earlier, or wake the child earlier. If the problematic afternoon nap is in daycare, talk to the daycare provider about moving or shortening it.

Create a space that’s conducive to sleep. Some children can sleep anywhere and through anything, but most do best with a space that is quiet and dark. A white noise machine (or even just a fan) can also be helpful.

Don’t use screens before naptime or bedtime. The blue light emitted by computers, tablets, and phones can wake up the brain and make it harder for children to fall asleep.

When is it time to give up naps?

Most children give up naps between the ages of 3 and 5. If a child can stay up and be pleasant and engaged throughout the afternoon, they are likely ready to stop. Some crankiness in the late afternoon and early evening is okay; you can always just get them to bed earlier.

One way to figure it out, and ease the transition, is to keep having “quiet time” in the afternoon. Have the child go to bed, but don’t insist on sleep; let them look at books or play quietly. If they stay awake, that’s a sign that they are ready to stop. If they fall asleep but then end up staying up very late, that’s another sign that the afternoon nap needs to go.

Whether or not your child naps, having some quiet time without screens every afternoon is a good habit to get into. It gives your child and everyone else a chance to relax and unwind, and sets a placeholder not just for homework but also for general downtime as children grow — and just like naps for babies, downtime for big kids is crucial.

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