What Sugar Does to Your Brain & Body: The Truth About Sugar

What Sugar Does to Your Brain & Body: The Truth About Sugar

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What Sugar Does to Your Brain & Body: The Truth About Sugar – Thomas DeLauer

Sugar’s Effect on the Body

1. Inflammation, Joint Pain, and Aged Skin

High sugar foods have been shown to lead to inflammation in the body, which can increase the susceptibility of individuals to these diseases and can also worsen symptoms for those already suffering from them.

Scientific surveys have also found that increased sugar consumption, in particular sugar filled soda, may increase the risk of developing rheumatoid arthritis and may worsen symptoms (RA). 1,2

The inflammation caused by sugar not only impacts our health, but also our skins look and feel.

When sugars attached to proteins in your bloodstream, advanced glycation end products, or AGEs, are formed. These harmful molecules age your skin through causing damage to the elastin and collagen. This leads to more wrinkles and sagging skin.3

2. Heart Health

When you consume simple sugars, the boost of insulin in the bloodstream can cause artery walls to grow faster than normal and lose their elasticity.

Over time, this can lead to heart attacks, stroke, and heart disease.

Additionally, research suggests that consuming less sugar may help to lower blood pressure, which is a major heart disease risk factor.

Studies have found that those who eat a lot of sugar (25% or more of their calories as added sugar) are twice as likely to die of heart disease when compared to those who consume 10% or less of their total calories from sugar.4

Sugar’s Effect on the Brain

1. Addiction

Sugar shares many similarities with drugs of abuse.

In rat studies sugar has been found to lead to signs of dopamine sensitization and opioid dependence, including cross-sensitization with alcohol and amphetamine, neurochemical and behavioral signs of withdrawal, and alterations in dopamine and my-opioid receptors.6

When you eat sugar, you brain releases dopamine, a neurotransmitter that causes you to feel good.

Whole foods, even fruits, do not cause the release of the same quantity of dopamine as processed, sugary foods, such as donuts.

As time goes on, your sensitivity to dopamine decreases, causing your brain to need more to feel the same amount of pleasure.

This is what causes addiction cravings to sugar.

2. Depression

Studies have linked high sugar consumption to depression risk in adults.

This leads to the following question: does sugar lead to depression, or does depression influence sugar intake?

Case Study: Sugar Impacts and Adverse Effect on Long-Term Psychological Health 7

In a 2017 study published in Scientific Reports, researchers sought to determine if sugar consumption leads to common mental disorder (CMD) and depression or if the reverse is true, that individuals suffering from CMD and depression are more likely to eat sugary foods.

Through analysis of repeated measures for 23,245 person-observations from the Whitehall II study, mood was assessed using validated questionnaires and diet through food frequency questionnaires.

Researchers found that neither depression not CMD predicted the intake changes found during their analysis where positive associations between sugar consumption and CMD and depression were found.

This led the researchers to conclude that dietary sugar intake has an adverse effect on long-term psychological health, including both CMD and depression.

So How Much Sugar is too Much?

Currently the average adult consumes roughly 22 teaspoons of added sugar per day, which is far more than the American Heart Association recommends: no more than 6 t/day for women and 9 t/day for men.5

Remember that this is added sugar, so not the natural sugars found in fruits,


1. Diet and rheumatoid arthritis symptoms: survey results from a rheumatoid arthritis registry

2. Sugar-sweetened soda consumption and risk of developing rheumatoid arthritis in women

3. Advanced glycation end products

4. Relationship between added sugars consumption and chronic disease risk factors: current understanding

5. Added sugars add to your risk of dying from heart disease

6. Daily bingeing on sugar repeatedly releases dopamine in the accumbens shell

7. Sugar intake from sweet food and beverages, common mental disorder and depression: prospectiv
e findings from the Whitehall II study


  1. Sugar can also cause dehydration, when I take a lot of sugar I cant get out of bed in the morning due to lower back pain. If I have no sugar I have no problem.

  2. OK, all good knowledge and factual info. but what’s missing is a specific diet plan for those who want an alternative to the sugar laden one they may be on right now. I guess that will be in your next video maybe?

  3. I swear I get totally addicted to sugar, it’s why I watched this video. When I eat say ice cream, next day I WILL eat ice cream, I HAVE TO HAVE IT. It’s strange when I detox off sugar, pictures like the ones in this video make me sick, the thought of eating chocolate pie for example, then I eat it and it’s gross, but next day I have to have it.
    I used to wonder why I always gained weight from October through Christmas, as a kid Halloween candy would start me on candy, I’d get addicted, would raise insulin and I’d gain fat, fast.
    Right now I have insatiable craving, just cancelled a order for two pints of ice cream, sugar addiction, for me anyways is real, last thing brain fog, depressed, and weak

  4. I avoid sugar almost 98% completely
    No candy
    No candy bars
    No soda
    I feel pretty good fit the most part
    Everyone should do this

  5. I was recently diagnosed as prediabetic. I went cold turkey and quit all sugar. I even began drinking my coffee black. Lots of vegetables and healthy fruits. Sugar free jello and sugar free pudding are my guilty pleasures. The arthritis in my knees has improved 100 %. I recently went to two family events and was able to wear heels. Never thought I would be able to wear heels again. To my doctor’s astonishment after 6 weeks my blood sugar is normal. Sugar is poison. Thank you 😊

  6. Tnq for sharing this this video is really very helpful for me…
    Love from INDIA ❤️😍

  7. I went from quiting alcohol (addiction)…to highly craving sugar(addiction again), gained 5lbs in 1 week….After 2 weeks of quiting alcohol, I realized I needed to kick sugar too (my skin became extremely horrible and I still was a bit sluggish and brain foggish….I quit sugar and man I feel so much different (within about 4 days).

  8. I’m here with Multiple Sclerosis investigating why High5 is the only thing that seems to halt my daily stroke-like attacks.

  9. Losing a lot of weight and being left with most of the loose skin that use to contain that fat almost makes a person want to gain it all back. It looks worse than the fat did, and that’s depressing! Is there a way to tighten up this skin without surgery?

  10. After finishing off my 2 ice cream tubs and bottle of coca cola I’m going on a sugar detox lol

  11. Dude shut the hell up. Differ from types of Sugar.. Sugar is not bad as you can find it in fruit and natural sources.. the processed one is bad. Stop with your keto bullshit

  12. I’ve gotten rid of sugar. Diabetes has taken loved ones. I’ve got inflammation or had and get migraines, slept like garbage etc. I cut out sugar completely and started keto. I swear on all I hold dear, I no longer have sleep issues and my knees stopped hurting. I just feel better, I encourage anyone reading this to educate yourself with experts and change your life.
    You are born weak and wrinkled and you die the same..how you look and feel in-between is up to you

  13. I quit sugar for 3 months I did not work out I lost 16kg feel amazing. Sugar is poisen have no doubt about that.

  14. "What Sugar does to your Brain": Figure 1: This Human body has an inability to convert protein and fats into glucose. Thus his brain is criticaly hypoglemic. 😛

  15. Thomas Delauer – I noticed you specifically mentioned "refined" WHITE sugar not being good for you with which I totally agree. However, what about eating apples which is completely natural and made by God? So, I have two questions (1) Are apples bad for you? (2) What do you eat for a dessert which is good for you?

  16. Says a man on steroids and science that doesnt know what human is or anything else . But that is not to say sugar is not a problem but its not the biggest one . We eat garbage dead food that is the big issue and its hard to change when you live in NY and things. Its ipossible that is why hes pretending to be fun fit we all like to pretend that we live that life style but its impossible in NY and things you are gonna be eaten save your self f sugar save your life run away 😃

  17. So you’re saying I can get a shredded physique by cutting sugar out of my life completely?🤔🤔🤔

  18. OK, I hear ya… And it’s all wonderful but, I am a week on keto so far and my brain feels like shutting down, I can’t even remember simple thing🤯can’t think at all and everything very irritating😠🥺 I’m also 18 hours fasting, two meals with lots of vegetables, taking B12 and a little bit of potassium supplement to it… I’m begging you, what can I do to help feel better🙏🙏🙏

  19. I stopped eating sugar a little over a week ago. Had headaches the first few days. My mouth feels cleaner, I sleep better, less tired, and my brain feels like a fog has been lifted

  20. What about natural sugars I think those are good for people who workout at a high level because it helps their body recover faster. Ex chocolate milk, honey, maple syrup, coconut sugar, fruit. Athletes usually will take sugar to boost performance.

  21. Anyone know whether sugar derived from sugar cane is any safer/ ok to eat periodically compared to refined sugar.?

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