Advertising
Advertising

2 Health Myths You Are Taught in School that Are Wrong

2 Health Myths You Are Taught in School that Are Wrong

In high school, and even beyond that, we are taught to believe a lot of things that aren’t true. Most of the time it is not on purpose, but these health myths are still harmful.

Myth 1: Alcohol kills brain cells

Sure, if you physically pour 100% alcohol onto a brain, it’s not going to react very well. When you are drinking alcohol though, this is not the case (read this book). The original research into this was done as follows:

  1. Take dead alcoholics and regular people
  2. Check brain cell density in both
  3. Alcoholics had lower density in their brain
  4. Conclusion: alcohol kills brain cells

Why it this wrong?

Well, it’s called a ‘confounding variable’. Basically, there was another factor at play. Specifically here:

  • Alcoholics tended to be of lower education
  • Alcoholics tended to have worse nutrition

A brain without good nutrition and no stimulation in the form of education is obviously not going to be the same as one of a person who does have those things.

After this was pointed out, the data was analyzed taking into account these factors. Guess what? No difference.

It’s still harmful, though.

But there should be a clear distinction between alcohol use and alcohol abuse. Alcohol can increase risk of specific cancers in some people, and in high dosages, it is detrimental to the liver (and yes, the brain).

Advertising

When enjoyed responsibly, though, alcohol actually appears to increase lifespan. And for some cancers, risk actually seems to be lower if you drink small amounts.

On the note of addiction, alcohol has a relatively high addiction potential, though it’s lower than tobacco:

Drug-harm-chart

    If you have trouble believing this graph, don’t worry, you are not the first. It’s from the paper “Development of a rational scale to assess the harm of drugs of potential misuse,” and entirely accurate.

    How much is fine?

    For men, drinking 2 standardized glasses a day is the max. For women, 1. Note that you can’t save up! If you don’t drink during the week, that doesn’t mean you can have ten drinks on Saturday and still call it healthy.

    Myth 2: Eating cholesterol increases your blood cholesterol

    This one bothers me even more than the first. It bothered me so much I spent months doing cholesterol research to find out why on earth we still believe this. It all started because someone used epidemiological research to make headlines.

    Advertising

    Epidemiological what?!

    Cholesterol-Intake-Map

      It’s simpler than it sounds. Epidemiological research is something like this:

      1. The average Swedish citizen has white skin
      2. The average South African citizen has black skin
      3. Sweden gets little sun
      4. South Africa gets a lot of sun
      5. Sun probably makes your skin darker

      Makes sense right? There is only one big problem: you can never prove anything with epidemiological research. Look at this example to see why:

      1. The average Dutch citizen has white skin
      2. The average South African citizen has black skin
      3. The Dutch eat a lot of cheese
      4. South Africans eat little cheese
      5. Cheese probably makes you white

      See the problem there? Just because two things coincide, it doesn’t mean they are in any way connected.

      Your eat 300mg, you make 1000mg

      This is basic biology, taught to every doctor: the average person eats 300mg of cholesterol a day. The average liver produces 1000mg a day.

      Read that again. Your own body produces three times more cholesterol than you eat. Do you really think that that 300mg is the problem?

      Advertising

      If you eat more than 300mg cholesterol, your liver senses this and produces less.

      The trouble starts if the liver can’t keep up.

      LDL and HDL for dummies

      The cholesterol in your food is not the cholesterol in tour blood. In your food it is a simple substance, in your blood it is balled up into a complex of cholesterol and proteins.

      ldl-and-hdl

        Simplified:

        • LDL is a fluffy cholesterol ball that carries cholesterol from the liver to the body
        • HDL is a dense ball that carries cholesterol from the body back to the liver

        What matters is not so much how much cholesterol you have, but whether your LDL (giver) is in balance with your HDL (cleaner).

        Advertising

        So what does cause high cholesterol?

        Mostly food. Specifically sugars and other fastly absorbed food. Take a look at this collection of graphs:

        Cholesterol-low-carb-vs-low-fat
          • The red line is a low fat diet
          • The yellow line a mediterranean diet
          • The purple line a low-carb diet

          The purple line basically wins on every measurement type, while a low fat diet loses.

          To keep cholesterol under control you should basically read up in low glycemic index foods.

          More by this author

          23 Body Language Tricks That Make You Instantly Likeable 17 Small Things To Do Every Day To Be Much Smarter How To Hold Your Breath For 4+ Minutes 8 Christmas Drink Recipes To Warm Up Your Holiday Parties 10 Morning Habits of Successful People That You Should Learn

          Trending in Health

          1 9 Benefits of Napping (Backed by Science) 2 Good Sleep Habits You Need (And Bad Ones to Avoid) for Energy 3 20 of the Best Guided Meditations for Sleep and Insomnia 4 9 Best Sleep Tracker Apps to Help You Get Adequate Sleep 5 10 Green Tea Benefits and the Best Way to Drink It

          Read Next

          Advertising
          Advertising
          Advertising

          Last Updated on March 24, 2021

          8 Smart Home Gadgets You Need in Your House

          8 Smart Home Gadgets You Need in Your House

          We’ve all done it. We’ve gone out and bought useless gadgets that we don’t really need, just because they seemed really cool at the time. Then, we are stuck with a bunch of junk, and end up tossing it or trying to sell it on Ebay.

          On the other hand, there are some pretty awesome tech inventions that are actually useful. For instance, many of the latest home gadgets do some of your work for you, from adjusting the home thermostat to locking your front door. And, if used as designed, these tools should really help to make your life a lot easier—and that’s not just a claim from some infomercial trying to sell you yet another useless gadget.

          Advertising

          Take a look at some of the most popular “smart gadgets” on the market:

          1. Smart Door Locks

          A smart lock lets you lock and unlock your doors by using your smartphone, a special key fob, or biometrics. These locks are keyless, and much more difficult for intruders to break into, making your home a lot safer. You can even use a special app to let people into your home if you are not there to greet them.

          Advertising

          2. Smart Kitchen Tools

          Wouldn’t you just love to have a pot of coffee waiting for you when you get home from work? What about a “smart pan” that tells you exactly when you need to flip that omelet? From meat thermometers to kitchen scales, you’ll find a variety of “smart” gadgets designed to make culinary geeks salivate.

          3. Mini Home Speaker Play:1

          If you love big sound, but hate how much space big speakers take up, and if you want a stereo system that is no bigger than your fist, check out the Play:1 mini speaker. All you have to do is plug it in, connect, and then you can stream without worrying about any interruptions or interface. You can even add onto it, and have different music playing in different rooms.

          Advertising

          4. Wi-Fi Security Cameras

          These are the latest in home security, and they connect to the Wi-Fi in your home. You can use your mobile devices to monitor what is going on in your home at all times, no matter where you are. Options include motion sensors, two-way audio, and different recording options.

          5. Nest Thermostat

          This is a thermostat that lives with you. It can sense seasonal changes, temperature changes, etc., and it will adjust itself automatically. You will never have to fiddle with a thermostat dial or keypad again, because this one basically does all of the work for you. It can also help you to save as much as 12% on heating bills, and 15% on cooling bills.

          Advertising

          6. Smart Lighting

          Control your home lighting from your remote device. This is great if you are out and want to make sure that there are some lights on. It is designed to be energy efficient, so it will pay for itself over time because you won’t have to spend so much on your monthly energy bills.

          7. Google Chromecast Ultra

          Whether you love movies, television shows, music, etc., you can stream it all using Google Chromecast Ultra. Stream all of the entertainment you love in up to 4K UHD and HDR, for just $69 monthly.

          8. Canary

          This home security system will automatically contact emergency services when they are needed. This system offers both video and audio surveillance, so there will be evidence if there are any break-ins on your property. You can also use it to check up on what’s happening at home when you are not there, including to make sure the kids are doing their homework.

          Featured photo credit: Karolina via kaboompics.com

          Read Next