Here Comes The Sun: The Science of Vitamin D
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- čas přidán 8. 04. 2024
- When you hear the word "photosynthesis", you probably think plants, but we also "make with light". Our skin uses Ultraviolet B light to synthesize Vitamin D, and it's pretty essential to our wellbeing. But what is fascinating is the delicate balance between making enough Vitamin D and being at high risk of skin cancer. And the molecule that completes this menage a trois is the one that fundamentally underpins racism and things like "fairness creams".
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PLEASE NOTE: 2:52 The Ionizing and Non-Ionizing labels are on the wrong sides. Gamma ray/UV is the ionizing side and Microwave/Infrared/Radio is the non-ionizing side. CZcams used to allow annotations but now they don't, so I couldn't edit the video. Thanks for the patience
Was about to ping you regarding this! There goes my 5 seconds of fame😂
I was going to comment this
Also forgot to mention gamma rays turn a person into a mean, green and lean violent machine.
Sun? what sun? its permanently cloudy thanks to your lies about GLOBAL WARMING rubbish propaganda
I was confused initially. Thank you for the clarification
the amount of research that has gone into this video is just amazing. Thank you for this informational video . The best video in entire youtube about vitamin D ..
As a brown person living in Europe, the part about being vitamin D deficient is true. My first year I was severely ill during the bleak, grey and depressing autumn and winter. GP adviced tested and lo, and behold vitamin D deficient. Started taking pills and watched my well being became better.
Of course, diet and excersize ALWAYS play a role on your overall physical and mental health. They are non negotiable, and so is Vitamin D.
Thanks for covering this Krish. Your content helped me critically think over this subject matter. There was a phase where even doing groceries became an upsetting chore (where are the vegetables coming from, are they organic? Do they sell A2 milk here? Yoghurt? Etc etc.
Glad I grew out of it relatively quickly. Having a healthy diet, brisk walking at least 20 minutes a day, and the sun light matters more than that croissant with a coffee on a sunday morning at an artisinal bakery.
Thankfully here lot of foods are fortified, from rice snaps to corn flakes ❤️
Vitamin D is not just limited to the bones. It is the most important vitamin and it has potential to cure any disease. People don’t understand it’s importance because it’s free
Our ancient saying "Sun is the perceivable God."
Yes indeed
If ever God could exist, then The Sun is the only God
@@RahulRaj-mu1kg You can see God every where in many ways and many forms Even if your are blind. 🙏
@@Yk-fu5su Then I am also a God. You too are a God
The only believable God
Even moon is visible due yo the solar radiation on moon's surface
I believe that the labels on the electro magnetic spectrum for ionising and non ionising radiation are on the wrong sides by mistake
@krishashok: please consider re-uploading the video.
Will fix that
I was about to type that
Me too
Lovely Krish. Amidst an explosion of misinformation you come across as a whiff of fresh air with real testable information. Kudos. Thanks for this.
I was looking for a reliable video for this info from long time. It has clarified all the doubts I had, especially 'fact Vs myth', even many experts are divided on it, creating all sorts of confusion. Thank you!
Great video as always - loaded with insights😊..btw, you're leveling up your editing game quiet significantly with each video 🎉
After long time of hearing and confusions about Sun and vitamin D, finally getting some clarity, thanks!
Krish, I wish you were my professor! Thank you for your selfless work and time 🙏🏽
man, I love this type of videos. Just tons of information on why things are they way they are, and tips on how to make things better.
I truly enjoyed this video. Thank you 🥹
Great video as usual Krish!!!
How much skin should be exposed for optimum absorption?
Hi Krish,
I love your video! Very informative, backed by science!
Many thanks.
This is a fabulous one. Many of my doubts have got cleared. Thank you
Wow...krish...you make everything so easy to understand... I'll never stop saying that 😅 All your video topics should be taught in school to kids, instead of subjects which are never used in general life.... My heartfelt Thank you 😍💕
Very well said
At 3:12 you have to switch the caption. Short waves are ionising. Long waves are non- ionising. You have written the opposite.
Amazingly explained!
So informative! Thankyou!
Thank you for the great content! ☺️
Thank you for this very informative content!!
great content sir, great work
One of your best!
Labels on 3:12 need to be the other way around. Might be worth putting up a pinned comment to mention it so it’s not too confusing.
Yes. Will do!
‘Racism is just skin deep’ - Wow! - BTW Krish, you resemble ‘the professor’ from Money Heist !
Thanks bro... Much needed help
This is on another level, sir you are doing service not posting content, as always science with comman sense is needed
Amazing❤. Such a deep research u do. Very educative blogs. Thnx
Thank you for such a good explanation...too good educative 👌✨
Wow that was just superb thank u sir
I've officially added this to my 'Watch Every Month' list.
marvellous info...
Off topic,but really love your t shirtttt in the thumbnail can you tell where you got it pleaseeeeeee?
Thanks a lot. Very informative video.
Beautifully explained in simple words
Awesome, Krish!! So simple to understand. BTW I have been prescribed Vitamin D supplement in the US and after this video I have learned the reason. Thanks!
Brilliant video and well put
I remeber when I asked this question and you said to read articles and I did read articles from Evolutionary biology and this is exactly what I read. Little bit more details in migratory pathways but I don't think people need to know that detail.
Amazing video!!!!
Thank you for the great content as always. I always save your videos.😅❤
Sir u r a priceless treasure to all of us
Sir I’m a doctor and a history buff. I love your videos for their accuracy and humour. Is there an audiobook of Masala Lab with your voiceover?
Very informative but so easy to understand ❤
Thanks Krish for the excellent video. This clarifies a lot of the misconceptions.
Thank you
8:45 appreciate more insight into time spent - does it need to be 45 mins at a stretch or can we do in breaks of 10 mins? Also, how much body coverage (%) ??
Amazing vidoe!
do we need sunscreen at all?
Hi Krish, thank you for this video, its really useful, wanted to ask, is using sunscreen everyday safe for teenagers and adults?
Beautifully explained.
Brilliant!
I think there's a mistake in the labels at 3:12, it should be the other way round...
True! From Canada!
Learned a lot thx
Vitamina K2 should also be consumed with Vitamin D supplement.
Wonderful
Wonderful video Krish👍 very informative and useful. Thank you !
Glad you liked it
Excellent Sir.
Hi Krish sir, I think there is a mistake in labelling of the wavelength as to which is non ionising.
10:20 so trueee. I’m a South Indian living in Canada and the lack of sunlight is brutal! Taking vitamin D supplements was a game changer.
Seasonal affective disorder (SAD) is super real in the latitudes closer to the poles during winter times. Idk if it’s psychosomatic but I felt much more normal during the winters with supplements than without.
U r highly learned person,i am not finding anything to counter u
Why would you try
@@_Amit_Sunil good question
Simple, scientific, concise,... such an amazing video... thank you for your efforts sir...
Thank you!
Such a detailed explanation 🎉
Glad it was helpful!
Beautiful video
Excellent explanation - is your graphic at 2:56 correct? You mentioned microwave is non-ionizing and UV is ionizing. However the graphic is other way around.
Yes. -i have pinned a comment stating that the picture is the wrong way around. Unfortunately CZcams does not allow captions or edits
Thank you, very well explained
@0:37 what is measure of energy?? Please clarify
Useful points in this video.
Necessary to have normal levels of Vit D ( like every other Vitamin).
Get your levels checked.
If deficient, remedy thru Diet/supplements / exposure to sunlight.
All else is padding.
how to exact supplement and balance Vitd3 k27 & magnesium according to age weight and geographical area like india, kindly clarify Sir @krishashok
@Krishashok
Is there any connection between reduced Vitamin D and Diabetes?
now it is hot summer here in Karnataka Udupi where i live...so going out in sun between 10 am to 2 pm for 45 minutes is just out of question as the perspiration willl be unbearable....i do have sunlight in the morning at around 7.15 to 7.45 am and evening around 5.15 to 5.45 pm..i hope this is more than enough....In any case thanks a lot for the detailed explanation
Excellent....
What a knowledge…. Keep it up man
Thanks a ton
Can we wear cap during the time we expose in morning sun or need to directly expose face and other parts directly to sun?
You would make an amazing teacher/professor/doctor. Whoever pushed you into engineering?
Any specific time of day for max vit d absorption & least uv damage
Very good information 😊
Interesting clips very well explained, as usual. Bravo ❤
Please check 2:51 and 3:15. The labels have been flipped. Higher frequencies are ionising.
Yes - will fix it
Possible to also share the effects of deficiency pls?
Good info... one question: What happens when people apply cold pressed oil like coconut oil all over the body and sit in the sun? I have seen in the case of my grandfather and other elders that their skin does not tend to age or form wrinkles so fast and they had good Vitamin D levels throughout their life. They would sit in the sun at least once a week for about 30min or so...
Appreciate the way you were able to articulate complex (highly technical) content in too little time; i will need my wife's advice to dig deeper (not on physics part); i may not hesitate to watch it 2-3 times more to further understand the nuance presented. good to learn from you and thanks for sharing your knowledge :)
Thank you
Thank you❤
Thanks for the in detailed explanation! For brown people, you mentioned 30 mins in the sun thrice a week is recommended. Can you give us an estimate of skin exposure for this time? I’m sure there’s a difference between just my arms or arms, legs and whatever possible
Not really sure. Let me check and get back
Love the t-shirt logo
Thanks for the video. I suffer from many skin diseases, the latest being vitiligo (loss of skin pigmentation) which began around 2 years ago. This led me to research Vitamin D extensively. I suspected an immune system that was out of whack. My Vit D test showed a result of only 18nl/ml. I began supplementing with around 3500IU a day. I also increased my protein intake significantly with eggs, red meat and organ meats. I am also taking Omega 3 supplements. I am also getting regular sun exposure, both morning and afternoon, whenever i can get it. I wear only short sleeve shirts to work now. The vitiligo lesions are more likely to get sunburned, so i am careful. Cancer is a risk, but interestingly, melanoma requires melanin, but there could be other problems of course. As a result of this routine, my Vitiligo has mostly stabilized, and the exposed areas of my skin are showing repigmentation. I am on a long journey to recovering from this horrible disease. In some ways i am grateful that this disease has revealed a nutritient deficit which, had i left it unaddressed, could have led to more serious diseases as i get older. Btw here are some interesting other facts on the topic:
1. Time slows down as you approach the speed of light. Photons travel at the speed of light and so do not experience time. So a photon created 8 mins ago on the sun that lands on your skin is experiencing both creation and destruction at the same moment. The same could be said of star light created hundreds of millions of years ago that lands on your eye.
2. According to a video by Medcram titled Light As Medicine, infrared radiation from the sun penetrates about 10cm into the tissue causing mitochondria within the cell to produce melatonin locally (instead of the night time Pineal gland operation). Locally produced melatonin helps to clear oxidative stress during daytime. So if you are unwell with the flu, then you should get some warming infrared (clothing is fine as infrared can penetrate). Incidentally this was the basis of solariums, which helped patients during the 1918 Spanish Flu. They didn't know what about the sun helped the sick, but it did and that's what mattered. A Nobel Prize was won but forgotten due to the discovery of Penicillin the following year (i think). Cheers.
Awesome info
Half an hour between 10 am to 2pm in summer causes skin burn . Does it safe
Sir pls make also a Tamil video in simple terms on how to get vitamin D from sun without getting photoaging and also how to use sunscreen
Ok
Very useful information.
Great video
Excellent video 👍🏻
Great explanation!! Unfortunately I have solar urticaria.Hence i produce histamines instead of vitamin d when i am exposed to the sunlight 😢
Your T shirt.... ❤😊 And as usual Great Content!
Hi Ashok. Your videos are really good and content appears to be well researched and presented with common sense and reasoning. Thanks a lot.
I have a question on going to Sun 3 times a day. Does it impact if we are behind a glass? Or is it have to be in direct sunlight? Another myth to be broken I guess.
1. 3 times a week. Not 3 times a day
2. Glass will filter out UV. This is why you can’t get tanned sitting next to a glass window
@@krishashok Thanks a lot. Yeah it was my mistake. I did understand it 3 times a week but somehow while writing used day.
So one has to be in direct sunlight. Thanks
Informative. But I am in New Zealand for the last one year and we cannot go out without Sunscreen, may end up getting skin cancer.
Beyond the sun….The T-shirt!! 😂 Jokes apart…really informative and well researched content! Vit-D deficiency is so common. Much needed awareness video.👍
Sir, I think there may be some mistake in the labeling when you explain about ionizing and non ionizing radiation..
Can you explain "Pancha Baksha Paramannam". Please
Sir, your voice is very dynamic
Haha thank you
Sir..can you throw some light on sun for people affected by vitiligo
Atlas ... Im confused with proper timing to get vit d and duration..
Im deficient ..
Kindly suggest
Don’t break your head. 30-40 mins 3 times a week anytime between 10-12. And eat vitD rich foods
@@krishashok thanks a lot