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15 Surprising and Science-Backed Health Effects of Dark Chocolate

15 Surprising and Science-Backed Health Effects of Dark Chocolate

You have probably heard others talk about the benefits of eating foods packed with nutrients and antioxidants as a way to promote overall health. I would be willing to bet that chocolate, and more specifically dark chocolate, has come up in these conversations. While it seems almost too good to be true, the health benefits to eating a moderate amount of dark chocolate are backed by science. So rest assured, this is one instance where you can have your cake (or in this case, dark chocolate) and eat it too.

1. For centuries, dark chocolate has been long been associated with health benefits

Incas referred to a beverage made from cocoa as “the drink of the gods”, which eventually gave rise to its scientific name Theobroma cacoa, derived from the Greek words theo (god) and broma (drink). Aztec Emperor Montezuma stated that cocoa “builds up resistance and fights fatigue” and can “permit a man to walk for a whole day without food”.

2. Dark chocolate is rich in a class of phytonutrients called flavonoids

Flavonoids are one of the most common and largest groups of phytonutrients found in the diet. These phytonutrients are chemicals found in plants that promote health To date more than 4,000 varieties have been identified. Dark chocolate and cocoa contain specific flavonoids called flavan-3-ols (or flavanols).

3. Dark chocolate is chock(olate) full of other nutrients

A small bar of 70-85% dark chocolate, let’s say 50 grams/1.75 ounces, contains

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  • nearly 6 grams of fiber for digestive health
  • a third of your recommended daily allowance (RDA) for iron to promote cardiovascular fitness
  • over a quarter of your RDA for magnesium for skeletal health
  • nearly 50% of your RDA for copper and manganese, important for antioxidant functions

It is also important to note, that a serving of dark chocolate contains 300 calories, so it is best to consume dark chocolate in moderation. And don’t worry! You can still get these healthy effects from smaller servings; just try to make sure you are eating dark chocolate that 70-90% cocoa.

4. Flavan-3-ols/flavonols in dark chocolate lower blood pressure

Research has shown that after consumption of dark chocolate, antioxidant capacity in blood increased, which led to the opening of blood vessels and decreased blood pressure.

5. Dark chocolate decreases “bad” cholesterol and increases “good” cholesterol levels

You may have heard LDL, HDL, or VLDL. But what does this alphabet soup mean to your cholesterol and overall health? Briefly, cholesterol is made up low-density lipoprotein (LDL), high-density lipoprotein (HDL) and very low-density lipoprotein (VLDL). LDL is considered the “bad” cholesterol that can build up on the walls of arteries, while “HDL” is called the good cholesterol, which can block LDL from building up on arteries. A variety of studies have shown that both dark chocolate and cocoa powder reduced LDL and oxidized LDL levels and increased HDL levels.

6. Dark chocolate reduces platelet aggregation

Platelets are components found in blood cells that help to form clots. While clots are critical in stopping excessive bleeding, hyperactive platelets can contribute to coronary heart disease. A study investigating the effects of white, milk, or dark chocolate showed that dark chocolate inhibited platelet accumulation, while white and milk chocolate had no effect on platelet clustering.

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7. Risk for cardiovascular disease is slashed by dark chocolate

Points #4-6 may be all well and good, but does dark chocolate broadly impact hearth health? Turns out, it does. A study researching the long-term diet habits in nearly 500 elderly men revealed that cocoa intake was inversely correlated with cardiovascular disease and mortality rates that were assessed 15 years after the study began. Another epidemiological study in the US general population demonstrated that consumption of chocolate was inversely related to coronary heart disease and that eating chocolate 5 times per week lowered the coronary heart disease risk by 57%. So go ahead and enjoy a daily piece of dark chocolate.

8. Moderate dark chocolate consumption lowers the risk for stroke

What about stroke? An analysis of five different studies demonstrated a nearly 20% stroke risk reduction when comparing those defined as high consumers (~ 62.9 grams/week or a tenth of a pound for our non-metric friends out there) to those defined as low consumers of dark chocolate (~ 0 grams/week).

9. Insulin blood sugar spikes are reduced by dark chocolate

Unfortunately, diabetes is a growing concern in the United States, so wouldn’t it be great if dark chocolate could mitigate rates of diabetes? An analysis over 40 clinical trials, including nearly 1300 participants, found that nutritional interventions with cocoa or chocolate significantly reduced fasting insulin concentrations and insulin resistance, endpoints which are used to assess risk for the development of diabetes and cardiovascular disease. Again, moderation is key here and the distinction between cocoa/dark chocolate and milk/white chocolate is critical since milk/white chocolate have lower levels of healthful components.

10. Flavanols stimulate blood flow to the brain

A 450 milligram dose (about 1/6 of a teaspoon) of cocoa flavanols increased cerebral blood flow to gray matter in the brain. Additionally, a five day regimen of 150 milligrams of cocoa flavanols increased blood oxygenation levels. But does blood flow translate into smarts? I’m so glad you asked, see the next point.

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11. Increasing intake of cocoa can improve cognitive function

A study in 90 elderly participants investigated the effects of a high (~990 milligrams), intermediate (~520 milligrams), or low (~45 milligrams) cocoa flavanol doses. Researchers found that participants on the high flavanol track were able to complete cognitive tests much faster and scored better on verbal fluency test scores in comparison to those assigned to low flavanol supplementation. So you are telling me that dark chocolate could make me smarter? Sweet.

12. Dark chocolate reduces stress

This list just gets better and better. Personally, I feel like a weight has been lifted off my chest and this next point only helps this feeling. Preliminary studies demonstrate that dark chocolate consumption reduced excretion of cortisol and catecholamines, hormones involved in the body’s stress response. Additionally, other researchers have shown that consumption of dark chocolate buffered stress responses and reduced levels of perceived stress as assessed through a stress questionnaire. Now it makes even more sense to keep a bar of dark chocolate at work.

13. Dark chocolate boosts energy

I am always looking for an alternative pick me up to my traditional afternoon cup of coffee. Dark chocolate contains a small amount of caffeine to help give you a boost during the mid-afternoon slump.

14. Flavanols from dark chocolate can protect the skin

Just in time for summer! Consumption of flavanol rich chocolate protects against UV rays by increasing the minimum amount of UV rays required to cause skin redness. Moreover, flavanols from cocoa improve blood flow to the skin and increases skin hydration and thickness.

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15. Dark chocolate can improve teeth health

Sparkle up that smile. Dark chocolate is rich in the antioxidant theobromine, which has been shown to protect the enamel surfaces of teeth. Additionally, this potent antioxidant is better than fluoride at remineralizing and hardening tooth enamel. Knowing these facts only makes me smile more.

As you can see, the health effects of dark chocolate are supported by science and exhibit how dark chocolate and cocoa broadly promote health. Even though I am a dark chocolate lover already, reading over this list has only further convinced me to pick up another bar the next time I am grocery shopping to enjoy this treat (in moderation)!

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Last Updated on November 19, 2019

20 Time Management Tips to Super Boost Your Productivity

20 Time Management Tips to Super Boost Your Productivity

Are you usually punctual or late? Do you finish things within the time you stipulate? Do you hand in your reports/work on time? Are you able to accomplish what you want to do before deadlines? Are you a good time manager?

If your answer is “no” to any of the questions above, that means you’re not managing your time as well as you want. Here are 20 time management tips to help you manage time better:

1. Create a Daily Plan

Plan your day before it unfolds. Do it in the morning or even better, the night before you sleep. The plan gives you a good overview of how the day will pan out. That way, you don’t get caught off guard. Your job for the day is to stick to the plan as best as possible.

2. Peg a Time Limit to Each Task

Be clear that you need to finish X task by 10am, Y task by 3pm, and Z item by 5:30pm. This prevents your work from dragging on and eating into time reserved for other activities.

3. Use a Calendar

Having a calendar is the most fundamental step to managing your daily activities. If you use outlook or lotus notes, calendar come as part of your mailing software.

I use it. It’s even better if you can sync your calendar to your mobile phone and other hardwares you use – that way, you can access your schedule no matter where you are. Here’re the 10 Best Calendar Apps to Stay on Track .

Find out more tips about how to use calendar for better time management here: How to Use a Calendar to Create Time and Space

4. Use an Organizer

An organizer helps you to be on top of everything in your life. It’s your central tool to organize information, to-do lists, projects, and other miscellaneous items.

These Top 15 Time Management Apps and Tools can help you organize better, pick one that fits your needs.

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5. Know Your Deadlines

When do you need to finish your tasks? Mark the deadlines out clearly in your calendar and organizer so you know when you need to finish them.

But make sure you don’t make these 10 Common Mistakes When Setting Deadlines.

6. Learn to Say “No”

Don’t take on more than you can handle. For the distractions that come in when you’re doing other things, give a firm no. Or defer it to a later period.

Leo Babauta, the founder of Zen Habits has some great insights on how to say no: The Gentle Art of Saying No

7. Target to Be Early

When you target to be on time, you’ll either be on time or late. Most of the times you’ll be late. However, if you target to be early, you’ll most likely be on time.

For appointments, strive to be early. For your deadlines, submit them earlier than required.

Learn from these tips about how to prepare yourself to be early, instead of just in time.

8. Time Box Your Activities

This means restricting your work to X amount of time. Why time boxing is good for you? Here’re 10 reasons why you should start time-boxing.

You can also read more about how to do time boxing here: #5 of 13 Strategies To Jumpstart Your Productivity.

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9. Have a Clock Visibly Placed Before You

Sometimes we are so engrossed in our work that we lose track of time. Having a huge clock in front of you will keep you aware of the time at the moment.

10. Set Reminders 15 Minutes Before

Most calendars have a reminder function. If you have an important meeting to attend, set that alarm 15 minutes before.

You can learn more about how reminders help you remember everything in this article: The Importance of Reminders (And How to Make a Reminder That Works)

11. Focus

Are you multi-tasking so much that you’re just not getting anything done? If so, focus on just one key task at one time. Multitasking is bad for you.

Close off all the applications you aren’t using. Close off the tabs in your browser that are taking away your attention. Focus solely on what you’re doing. You’ll be more efficient that way.

Lifehack’s CEO has written a definitive guide on how to focus, learn the tips: How to Focus and Maximize Your Productivity (the Definitive Guide)

12. Block out Distractions

What’s distracting you in your work? Instant messages? Phone ringing? Text messages popping in?

I hardly ever use chat nowadays. The only times when I log on is when I’m not intending to do any work. Otherwise it gets very distracting.

When I’m doing important work, I also switch off my phone. Calls during this time are recorded and I contact them afterward if it’s something important. This helps me concentrate better.

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Find more tips on how to minimize distractions to achieve more in How to Minimize Distraction to Get Things Done

13. Track Your Time Spent

When you start to track your time, you’re more aware of how you spend your time. For example, you can set a simple countdown timer to make sure that you finish a task within a period of time, say 30 minutes or 1 hour. The time pressure can push you to stay focused and work more efficiently.

You can find more time tracking apps here and pick one that works for you.

14. Don’t Fuss About Unimportant Details

You’re never get everything done in exactly the way you want. Trying to do so is being ineffective.

Trying to be perfect does you more harm than good, learn here about how perfectionism kills your productivity and how to ditch the perfectionism mindset.

15. Prioritize

Since you can’t do everything, learn to prioritize the important and let go of the rest.

Apply the 80/20 principle which is a key principle in prioritization. You can also take up this technique to prioritize everything on your plate: How to Prioritize Right in 10 Minutes and Work 10X Faster

16. Delegate

If there are things that can be better done by others or things that are not so important, consider delegating. This takes a load off and you can focus on the important tasks.

When you delegate some of your work, you free up your time and achieve more. Learn about how to effectively delegate works in this guide: How to Delegate Work (the Definitive Guide for Successful Leaders)

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17. Batch Similar Tasks Together

For related work, batch them together.

For example, my work can be categorized into these core groups:

  1. writing (articles, my upcoming book)
  2. coaching
  3. workshop development
  4. business development
  5. administrative

I batch all the related tasks together so there’s synergy. If I need to make calls, I allocate a time slot to make all my calls. It really streamlines the process.

18. Eliminate Your Time Wasters

What takes your time away your work? Facebook? Twitter? Email checking? Stop checking them so often.

One thing you can do is make it hard to check them – remove them from your browser quick links / bookmarks and stuff them in a hard to access bookmarks folder. Replace your browser bookmarks with important work-related sites.

While you’ll still checking FB/Twitter no doubt, you’ll find it’s a lower frequency than before.

19. Cut off When You Need To

The number one reason why things overrun is because you don’t cut off when you have to.

Don’t be afraid to intercept in meetings or draw a line to cut-off. Otherwise, there’s never going to be an end and you’ll just eat into the time for later.

20. Leave Buffer Time In-Between

Don’t pack everything closely together. Leave a 5-10 minute buffer time in between each tasks. This helps you wrap up the previous task and start off on the next one.

More Time Management Techniques

Featured photo credit: Unsplash via unsplash.com

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