This man is leaving a legacy of teaching beyond his lifetime for sure.

Wish I had teachers like this when I was studying, although I am not in medicine but engineering. Amazing ability to teach without trying to show off using buzz words. Presents exactly the right amount of information at the right place and moves on. Love the use of the fountain pen, and his ability to draw in freehand the concentric circles with equal spacing. While the negative side of the internet is causing so much suffering to people, the positive aspects of internet are exemplified by this brilliant teacher. It is for us to realise the value of internet through learning from teachers like this. Thank you, great work.

♥️ Brilliant. Can't beat a whiteboard with the rhythm of a Master speaking with an authentic tone of compassionate innate wisdom. Not just knowledge. 🙏 Thankyou beautiful you.

AM from Zambia, i have watched so many lecture videos but Dr. Campbells lectures are just the best.

I am short of words. All i can say is "God Bless you and give you long life and good health" Never seen or known anyone to explain Cardiovascular System in a short video and cover this much. thank you.

One of the best teachers in internet.

Dr Campbell - you are the best! Thank you for being a fabulously brilliant teacher. Lifesaver for this 54 year old Midwifery student who is simultaneously trying to run an Arts company . You rock.

I've been listening to your daily SARS-CoV-2, Covid-19 update videos, almost from the first one. Thank you. They've been excellent. Recently I've been exploring some of your teaching sessions as well. These are also very well done. You're a good teacher.

The nine-millionth 'thanks' comment. What a great channel...

Thank you so much for your teaching. May you be blessed more.

Mr Campbell lectures in such a free flow way that the listeners seem that they are listening anatomy, physiology in their vernacular languages. Hat's off to you sir.

May the good lord be with you and your family,give you good health, Long life and prosperity.may the good lord see you though in all thing that you do.thank you Dr

Thank you! I ve watched a lot of your presentations over the last two years and now I'm moving on to these! You make it interesting and I just want to learn more! At 67 years of age I have a basic knowledge of how our bodies work but these videos fill in the gaps. I wish I was starting out again, I would definitely go into medice. On a personal note I had a mitral valve repair and ablation procedure 2 years ago and I now finally understand what was going on 😁

I'm so lucky to have found such an amazing tutor online, at least watching the video clips gives me more insight on what I am reading , but from the look of things I don't need to read at length any more

Thank you so much dr campell. You made it very easy to understand. All of my nursing instructors could not explain it like you do. You are awesome and your videos are free.

You are one of my favorite online professor. You are the best. You dont know how much i have learned from you. God bless you

one of the best,very happy to found this,well appreciated

I am currently studying to become an MT and this video was incredibly helpful. His teaching style is to the point and very easy to follow and digest. Much appreciated.

I can't thank you anymore. You are the Dr Man

This was so helpful, you have no idea. I appreciate a million times

I learnt a lot because the explanation is well paced and clearly explained without unneeded words. I am not a science student but this is the best teaching of a science subject. Thank you.

I see my cardiologist tomorrow and at 70 this IS my condition in one chapter or another. Wanted to ask what explains difficulty breathing at the edge of sleep even when sitting up. I know you are teaching here and not diagnosing and just had to thank you in advance for helping me to identify my symptoms. My mother was an RN from the 50's thru the 80s and after retiring took care of most of the women friends she had worked with and known her whole career. They had also known me from birth and I was often tasked with elevating the head to their beds one after another unril she too passed away and it was my job to muddle thru without " getting fired" so to speak. Wherever this takes me, having your knowledge and manner will be a companion I wouldnt otherwise have. Thanks and best wishes.

Sir you made it so easy to understand , i can never forget the concepts Thank u so much

You're truly a Good Teacher 🤗🤗. You made it easier for me to understand. God bless you Sir 😊😊. Greetings from Nigeria 😘😘

Excellent presentation, utilizing buildup of basic diagrams and sketches in the true traditional learning and teaching procedure.

The Comprehendable Sir,God bless you enough.

Thank so much Sir .you are so wonderful. stay bless.

hi Dr John thanks for every effective and important vedio about heart. have you retired job but your embtion for teaching is speechless. I am so glad to listen your vedio and get a lot of basic to till acknowledgement about cardiolic enhance knowledge for beginner.

You are the best teacher❤

This is very easy to understand. Thanks Dr. John.

Thank you so much dr campell. You made it very easy to understand

His art of teaching is just outstanding......Hats off sir

I watch your lectures not so much for the information, but more so for your teaching style.

Thankyou so much for your amazing video. I understand clearly. You're amazing teacher! 😊❣️

Dr. thanks very much for demonstrative and constructive lectures, you are really taking your time to explaint every bit of your presentations.

Thank you very much, I love your teaching technique. This is one of the best videos I have ever seen in my life. Thank you so much and you be blessed wise man.

This video was very helpful. Thank You!

Dr John you sir are an amazing teaching. Well explained w simple hand draw diagrams I can easy take notes from. I'm have no medical background and I am enjoying learning.

thank you very much Dr johnvery well explained

Super fijn uitgelegd. Dank !

Great video. Thanks a lot for this.

I love your teachings

amazing , thank you ...

Wonderful, really educative

It really helped a nursing student . Thank you so much

amazing video and extremely helpful. thank you

Thank you so much for your good teaching .

Thanks so much!!

Thanks a bunch

Thank you Dr may God bless u

Dr John, I've subscribed to your channel with thanks to Covid-19, or rather to your recent regular reports on the pandemic. So some good has come from Covid! However, having experienced numerous TIA's during the first lockdown, and subsequently receiving three heart stents and two further vascular procedures, I find your cardio lectures absolutely fascinating and most helpful. Thank you.

I loved your class sir,it's very much useful for me✨✨✨

youre the best sir

Thank you very much Sir!

Thank you very much Best teacher

You're the best teacher a life saver to be honest you have made me love medicine and it's an honor be blessed, if you would do oby/gyn it would really be nice including the manœuvres

your the best

Thank you

Thank you so muchhhh 🙏🏾🙏🏾🙏🏾

great teacher

The best.

Helped so much

Nice video

Thanks Dr 👍

Thank you for makindg my lesson an easy one

hey doc u soo nice stay blessed alwayss❤️❤️❤️❤️

thank you

BRILLIANT, Dr. John thank you very kindely for teaching us your hands on science. Learning the implications is really empowering to connect the dots. DIET + EXERCISE = LIFE STYLE! 👍

Best doctor teaching and soo clear way, soo thanks

thank you so mach !!!

Sir kindly advice me the treatment of micro vascular angina .age 50 .female

Wow so well explained. Thank you so much! Your channel is incredibly valuable to me in my first year of nursing school. I have so many additional questions about this topic. For example, my placement at the hospital working at - why can’t someone with COPD get more than 91 percent of oxygen saturation? Is it because the air can’t get out?

Thank you sir

Nice

Do you offer a course? If not, what is the best way to watch your videos in order?

Dr Campbell sir very rare information 18/01/2020

Beautiful

Wow.....

I no longer feel pains and I wake up each morning feeling revived, thanks Dr Ayomede for the great herbal supplement that helped me sort out the hpv from my body system permanently

31:12 I have to say the whole high blood pressure problem is debatable. If you measure high bp and there are no kidney malfunctions causing it, then the pressure is reflective of narrowed arteries, because local narrowing increases measured pressure at the arm. So which is worse, lowering blood flow below what the body wants, thereby reducing oxygenation to tissues, which will for example impair blood vessel maintenance, or letting the pressure be, requiring more blood vessel repair? 32:28 just to repeat I don’t buy the hypertrophy leading to heart failure idea. Athletes would have the same problem. The only reasonable explanation in my mind is accumulating direct heart muscle injuries from things known to damage muscles, such as from some drugs. 56:30 the only causes I can find for venous hypertension are obstruction, and narrowing. 1:10:19 where does this burst pulmonary capillaries due to hypertension story come from? Is that taught in schools? I can’t find a single paper or blog that says that, and chatgpt also disagrees with the idea.

The beautiful side of the Internet

Thankyou 😊

okay understand more

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Thank you

Nice