Fasting - What does it do to your body?

In this video, Dr Mike explains what happens in the body after fasting (between meals) often termed the post-absorptive state and most apparent in the morning after 10-12 hrs of not eating.
He will discuss the role of glucagon and insulin and explain the following concepts:
- glycogenolysis
- gluconeogenesis

[PrinceAngelStar]

I absolutely respect and appreciate that you make these videos and present the topics in a clear, concise manner. Well done! :)

[laurafmartinss]

Far out!!! You are an absolutely amazing teacher! I cannot thank you enough for this!

[jacobfeldman]

Bro i am willing to learn every language on earth just to thank you in all of them,
You guys are just the best sick c*!s ever

[chaosawaits]

That was one glorious mustache. RIP mustache

[RotterdammerInMiami]

Hi Dr Mike, Thanks for this video.
When we fast for 18 hours, what should our blood glucose level meseaure? I got 4.1 mmol/L, isn't that too high after 16 hours fasting?

[mwasie]

Dr. Mike, this is one of your best videos that I, as a student, find most informative in its detail and level of clarity. Thank you sir! More please!

[jonjay]

I've been using Ketosis for weight loss off and on for the past 6-7 years now. So I've done a lot of reading and research on insulin resistance, glucose, etc. This video is PURE GOLD! This is only the second video I've watched of yours Doc, and I'm now a subscriber for life. Well done sir, you do a fantastic job of illustrating complex biological processes that even an uneducated simpleton like myself can understand. Keep up the great work!

[dailydoseofmedicinee]

Fasting can help decrease insulin levels and boost blood levels of human growth hormone and norepinephrine. These changes can help you burn fat more easily and help you lose weight.

[millionmillionaires]

This demonstrates GOD'S intelligence.

[catfurlong]

Well damn. Possibly the best explanation of this EVER. Thank you so much, I'm in my first year of medical school in the UK and this is amazing!

[misslawlesss]

i've heard that there is stored glycogen in the muscles also, and that the glucagon stimulates that and empties those stores before proteo- and lipo-breakdown into glucose. Ive heard that the muscles can contain upto 800-1000 grams.. Is this wrong?

[Skepticalstudent]

So how does one prevent proteolysis / preserve muscle mass during this process? Is there a way to remain fasted while ingesting doses of the necessary amino acids?

[shayekhabedin]

Brother, my lecturers have spent over 3 hrs trying to explain this to me, and I still didn't get it.
YOU explain it to me in 15min and I feel like a king in biochemistry.

[anant]

Excellent video!
@ 8:00 very important point - even a small amount of glucose will inhibit proteolysis and lipolysis. So no frequent small meals if you want to stimulate lipolysis.

[alanbricker]

Dude! In 15' 34, " you accomplished what it took my former A&P teacher one week to accomplish, and she was good. Case in point, I'm emailing this video to her. Final note; you're quickly climbing the charts as my favorite medical guy. THANK you!

[yvesmorales]

So fasting reduce adipose fat and muscle mass.. I don't like the later part

[virgowrld]

Scientist just be making up these names for fun

[dombarton]

Just proves that carbohydrates are not needed at all by any human to survive! The human brain doesnt prefer glucose...in fact glucose will always be used first because glucose is toxic in excess amounts. 4g to 5g of glucose is required at any given point..which is all the human body requires. Ketones is a much more fuel efficient energy source as the end result is more ATP bang for your buck so to speak. So remember this. Carbs are not necessary..and your brain will always use excess glucose first as it needs to remove it from the circulation as quickly as possible. Ketones are not toxic and is the most fuel efficient source of fuel for the human body!!

[EnglischLernen]

Great video. Thank you so much. Quick question: isn't the major part of glycogen stored in the muscles. how do they enter the equation? Forgive me if this is a stupid question.

[srijandey]

Ur lecture is fabulous but you are too handsome and I am getting distracted again and again