The Truth About Chocolate & Skin Health

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It’s Q&A Day at 10almonds!

Have a question or a request? We love to hear from you!

In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

So, no question/request too big or small

❝What’s the science on chocolate and acne? Asking for a family member❞

The science is: these two things are broadly unrelated to each other.

There was a very illustrative study done specifically for this, though!

❝65 subjects with moderate acne ate either a bar containing ten times the amount of chocolate in a typical bar, or an identical-appearing bar which contained no chocolate. Counting of all the lesions on one side of the face before and after each ingestion period indicated no difference between the bars.

Five normal subjects ingested two enriched chocolate bars daily for one month; this represented a daily addition of the diet of 1,200 calories, of which about half was vegetable fat. This excessive intake of chocolate and fat did not alter the composition or output of sebum.

A review of studies purporting to show that diets high in carbohydrate or fat stimulate sebaceous secretion and adversely affect acne vulgaris indicates that these claims are unproved.

~ Dr. James Fulton et al.

Source: Effect of Chocolate on Acne Vulgaris

As for what might help against acne more than needlessly abstaining from chocolate:

Why Do We Have Pores, And Could We Not?

…as well as:

Of Brains & Breakouts: The Neuroscience Of Your Skin

And here are some other articles that might interest you about chocolate:

Enjoy! And while we have your attention… Would you like this section to be bigger? If so, send us more questions!

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  • Celery vs Rhubarb – Which is Healthier?

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    Our Verdict

    When comparing celery to rhubarb, we picked the rhubarb.

    Why?

    In terms of macros, rhubarb has more carbs and fiber, the ratio of which give it the lower glycemic index, though both are low glycemic index foods. This means this category is a very marginal win for rhubarb.

    When it comes to vitamins, rhubarb has more vitamin C, while celery has more of vitamins A, B5, B6, and B9. A win for celery, this time.

    In the category of minerals, rhubarb has more calcium, iron, magnesium, manganese, potassium, and selenium, while celery has more copper and phosphorus. This one’s a win for rhubarb.

    Let’s give a quick nod also to polyphenols; rhubarb has more by overall quantity, and more in terms of “more useful to humans” too, being rich in an assortment of flavanols while celery must make do with some furanocoumarins.

    In short, enjoy either or both, but nutritional density is a great reason to get some rhubarb in!

    Want to learn more?

    You might like to read:

    What’s Your Plant Diversity Score?

    Take care!

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  • Want to sleep longer? Adding mini-bursts of exercise to your evening routine can help – new study

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    Exercising before bed has long been discouraged as the body doesn’t have time to wind down before the lights go out.

    But new research has found breaking up a quiet, sedentary evening of watching television with short bursts of resistance exercise can lead to longer periods of sleep.

    Adults spend almost one third of the 24-hour day sleeping. But the quality and length of sleep can affect long-term health. Sleeping too little or waking often in the night is associated with an increased risk of heart disease and diabetes.

    Physical activity during the day can help improve sleep. However, current recommendations discourage intense exercise before going to bed as it can increase a person’s heart rate and core temperature, which can ultimately disrupt sleep.

    Nighttime habits

    For many, the longest period of uninterrupted sitting happens at home in the evening. People also usually consume their largest meal during this time (or snack throughout the evening).

    Insulin (the hormone that helps to remove sugar from the blood stream) tends to be at a lower level in the evening than in the morning.

    Together these factors promote elevated blood sugar levels, which over the long term can be bad for a person’s health.

    Our previous research found interrupting evening sitting every 30 minutes with three minutes of resistance exercise reduces the amount of sugar in the bloodstream after eating a meal.

    But because sleep guidelines currently discourage exercising in the hours before going to sleep, we wanted to know if frequently performing these short bursts of light activity in the evening would affect sleep.

    Activity breaks for better sleep

    In our latest research, we asked 30 adults to complete two sessions based in a laboratory.

    During one session the adults sat continuously for a four-hour period while watching streaming services. During the other session, they interrupted sitting by performing three minutes of body-weight resistance exercises (squats, calf raises and hip extensions) every 30 minutes.

    After these sessions, participants went home to their normal life routines. Their sleep that evening was measured using a wrist monitor.

    Our research found the quality of sleep (measured by how many times they woke in the night and the length of these awakenings) was the same after the two sessions. But the night after the participants did the exercise “activity breaks” they slept for almost 30 minutes longer.

    Identifying the biological reasons for the extended sleep in our study requires further research.

    But regardless of the reason, if activity breaks can extend sleep duration, then getting up and moving at regular intervals in the evening is likely to have clear health benefits.

    Time to revisit guidelines

    These results add to earlier work suggesting current sleep guidelines, which discourage evening exercise before bed, may need to be reviewed.

    As the activity breaks were performed in a highly controlled laboratory environment, future research should explore how activity breaks performed in real life affect peoples sleep.

    We selected simple, body-weight exercises to use in this study as they don’t require people to interrupt the show they may be watching, and don’t require a large space or equipment.

    If people wanted to incorporate activity breaks in their own evening routines, they could probably get the same benefit from other types of exercise. For example, marching on the spot, walking up and down stairs, or even dancing in the living room.

    The key is to frequently interrupt evening sitting time, with a little bit of whole-body movement at regular intervals.

    In the long run, performing activity breaks may improve health by improving sleep and post-meal blood sugar levels. The most important thing is to get up frequently and move the body, in a way the works best for a person’s individual household.

    Jennifer Gale, PhD candidate, Department of Human Nutrition, University of Otago and Meredith Peddie, Senior Lecturer, Department of Human Nutrition, University of Otago

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • Pear vs Peach – Which is Healthier?

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    Our Verdict

    When comparing pears to peaches, we picked the peaches.

    Why?

    Both are great! But peaches are exceptional in some ways that pears just can’t match up to:

    In terms of macros, pears have more carbs and fiber, the ratio of which results in an approximately equal glycemic index. Thus, we’ll say that pears win this round by virtue of being the nutritionally denser option.

    Looking at the vitamins, pears have (slightly) more of vitamins B6, B9, and K, while peaches have (much) more of vitamins A, B1, B2, B3, B5, B7, C, E, and choline—thus sweeping this category easily for peaches.

    In the category of minerals, pears have more calcium and copper, while peaches have more iron, magnesium, manganese, phosphorus, potassium, and zinc. This time, the margins of difference for each mineral are comparably low (i.e. pears are close behind peaches on all those minerals), but still, by strength of numbers, it’s a clear win for peaches.

    When it comes to polyphenols, not only do peaches have more, but also, they have anticancer properties that pears don’t—see our link below for more about that!

    Meanwhile, adding up the sections makes for an overall win for peaches, but as ever when it comes to fruits, by all means enjoy either or both; diversity is good!

    Want to learn more?

    You might like to read:

    Top 8 Fruits That Prevent & Kill Cancer ← peaches in the #2 spot! They induce cell death in cancer cells while sparing healthy ones

    Enjoy!

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  • How To Avoid Age-Related Macular Degeneration

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    Avoiding Age-Related Macular Degeneration

    Eye problems can strike at any age, but as we get older, it becomes a lot more likely. In particular, age-related macular degeneration is, as the name suggests, an age-bound disease.

    Is there no escaping it, then?

    The risk factors for age-related macular degeneration are as follows:

    • Being over the age of 55 (can’t do much about this one)
    • Being over the age of 65 (risk climbs sharply now)
    • Having a genetic predisposition (can’t do much about this one)
    • Having high cholesterol (this one we can tackle)
    • Having cardiovascular disease (this one we can tackle)
    • Smoking (so, just don’t)

    Genes predispose; they don’t predetermine. Or to put it another way: genes load the gun, but lifestyle pulls the trigger.

    Preventative interventions against age-related macular degeneration

    Prevention is better than a cure in general, and this especially goes for things like age-related macular degeneration, because the most common form of it has no known cure.

    So first, look after your heart (because your heart feeds your eyes).

    See also: The Mediterranean Diet

    Next, eat to feed your eyes specifically. There’s a lot of research to show that lutein helps avoid age-related diseases in the eyes and the rest of the brain, too:

    See also: Brain Food? The Eyes Have It

    Do supplements help?

    They can! There was a multiple-part landmark study by the National Eye Institute, a formula was developed that reduced the 5-year risk of intermediate disease progressing to late disease by 25–30%. It also reduced the risk of vision loss by 19%.

    You can read about both parts of the study here:

    Age-Related Eye Disease Studies (AREDS/AREDS2): major findings

    As you can see, an improvement was made between the initial study and the second one, by replacing beta-carotene with lutein and zeaxanthin.

    The AREDS2 formula contains:

    • 500 mg vitamin C
    • 180 mg vitamin E
    • 80 mg zinc
    • 10 mg lutein
    • 2 mg copper

    You can learn more about these supplements, and where to get them, here on the NEI’s corner of the official NIH website:

    AREDS 2 Supplements for Age-Related Macular Degeneration

    Take care of yourself!

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  • As The Summer Gets Hotter Still…

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    It’s Q&A Day at 10almonds!

    Have a question or a request? We love to hear from you!

    In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

    As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

    So, no question/request too big or small

    ❝I would love to see an article about heat dehydrated illness….so much of the US is under hot conditions. I had an fainting sweating episode and now trying to recoup from it. What should we do? Drink water,rest…???❞

    We have done some of this, but it’s always a good one to revisit! Last summer (N. Hemisphere summer), we wrote this:

    Stay Safe From Heat Exhaustion & Heatstroke!

    …and this year, it’s getting hotter still (and is already the hottest summer on record), with certainly much of the US seriously affected, as you say. Next year, it will probably be worse again; climate change is getting predictable like that, and likely will continue until fixed. We are but a health science publication, so we can’t fix the world’s climate, but we can reiterate the above advice, and urge everyone to take it seriously.

    Note: heat exhaustion and heatstroke kill. Yes, we’re including heat exhaustion in that, because by the time you get heat exhaustion, you’re often not in the best state of mind to take the correct steps to avoid the heatstroke that follows.

    To think otherwise would be akin to thinking “falling never killed anyone; it’s only when you stop falling that it’s dangerous”.

    This summer, we did also write this more niche article:

    Surviving Summer While Fat

    …whose advice won’t apply to everyone, but will be helpful to some, and honestly, some of that advice does go for everyone.

    One thing we didn’t write about in those articles that we’ll add here:

    Humidity is dangerous:

    • Dry heat: you sweat, the sweat evaporates, cooling you. As well as losing heat, you’ve also now lost water and salts, which you’ll need to replenish, but your body is operating correctly.
    • Humid heat: you sweat, and now you are just sweaty until further notice. It doesn’t evaporate because the surrounding humidity doesn’t provide the physics for that. Not only are you not losing heat through evaporating sweat, but also, if you’re wearing clothes, that’s now an insulating layer you’re wearing.

    …so that means, watch the humidity as carefully as you watch the temperature, and when it’s high, get extra serious about finding ways to keep yourself cool (e.g. shade, rest, cooling showers etc if you can, that kind of thing).

    Take care!

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  • The Exercise That Protects Your Brain

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    The Neuroscientist In The Gym

    This is Dr. Wendy Suzuki. She’s a neuroscientist, and an expert in the neurobiology of memory, as well as neuroplasticity, and the role of exercise in neuroprotection.

    We’ve sneakily semi-featured her before when we shared her Big Think talk:

    Brain Benefits In Three Months… Through Walking?

    Today we’re going to expand on that a little!

    A Quick Recap

    To share the absolute key points of that already fairly streamlined rundown:

    • Exercise boosts levels of neurotransmitters such as dopamine and serotonin (and, which wasn’t mentioned there, noradrenaline)
      • These are responsible for motivation, happiness, and focus (amongst other things)
    • Persistent exercise boosts certain regions of the brain in particular, most notably the pre-frontal cortex and the hippocampi*
      • These are responsible for planning and memory (amongst other things)

    Dr. Suzuki advocates for stepping up your exercise routine if you can, with more exercise generally being better than less (unless you have some special medical reason why that’s not the case for you).

    *often referred to in the singular as the hippocampus, but you have one on each side of your brain (unless a serious accident/incident destroyed one, but you’ll know if that applies to you, unless you lost both, in which case you will not remember about it).

    What kind(s) of workout?

    While a varied workout is best for overall health, for these brain benefits specifically, what’s most important is that it raises your heart rate.

    This is why in her Big Think talk we shared before, she talks about the benefits of taking a brisk walk daily. See also:

    Walking, Better

    If that’s not your thing, though (and/or is for whatever reason an inaccessible form of exercise for you), there is almost certainly some kind of High Intensity Interval Training that is a possibility for you. That might sound intimidating, but if you have a bit of floor and can exercise for one minute at a time, then HIIT is an option for you:

    How To Do HIIT (Without Wrecking Your Body)

    Dr. Suzuki herself is an ardent fan of “intenSati” which blends cardio workouts with yoga for holistic mind-and-body fitness. In fact, she loves it so much that she became a certified exercise instructor:

    Wendy Suzuki | IntenSati

    How much is enough?

    It’s natural to want to know the minimum we can do to get results, but Dr. Suzuki would like us to bear in mind that when it comes to our time spent exercising, it’s not so much an expense of time as an investment in time:

    ❝Exercise is something that when you spend time on it, it will buy you time when you start to work❞

    ~ Dr. Wendy Suzuki

    Read more: A Neuroscientist Experimented on Her Students and Found a Powerful Way to Improve Brain Function

    Ok, but we really want to know how much!

    Dr. Suzuki recommends at least three to four 30-minute exercise sessions per week.

    Note: this adds up to less than the recommended 150 minutes of moderate exercise per week, but high-intensity exercise counts for twice the minutes for these purposes, e.g. 1 minute of high-intensity exercise is worth 2 minutes of moderate exercise.

    How soon will we see benefits?

    Benefits start immediately, but stack up cumulatively with continued long-term exercise:

    ❝My lab showed that a single workout can improve your ability to shift and focus attention, and that focus improvement will last for at least two hours. ❞

    ~ Dr. Wendy Suzuki

    …which is a great start, but what’s more exciting is…

    ❝The more you’re working out, the bigger and stronger your hippocampus and prefrontal cortex gets. Why is that important?

    Because the prefrontal cortex and the hippocampus are the two areas that are most susceptible to neurodegenerative diseases and normal cognitive decline in aging. ❞

    ~ Dr. Wendy Suzuki

    In other words, while improving your heart rate through regular exercise will help prevent neurodegeneration by the usual mechanism of reducing neuroinflammation… It’ll also build the parts of your brain most susceptible to decline, meaning that when/if decline sets in, it’ll take a lot longer to get to a critical level of degradation, because it had more to start with.

    Read more:

    Inspir Modern Senior Living | Dr. Wendy Suzuki Boosts Brain Health with Exercise

    Want more from Dr. Suzuki?

    You might enjoy her TED talk:

    Click Here If The Embedded Video Doesn’t Load Automatically

    Prefer text? TED.com has a transcript for you

    Prefer lots of text? You might like her book, which we haven’t reviewed yet but will soon:

    Healthy Brain, Happy Life: A Personal Program to Activate Your Brain and Do Everything Better – by Dr. Wendy Suzuki

    Enjoy!

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