Lesson 3 How Our Body Works
Timing is Everything
Welcome back to Today’s ____ Today we’re going to be talking about exercise.
Dr. Victoria ____ is here, and she is going to share some useful tips.
So, Dr. Hill, let’s start with a question about my experience last ____
I worked out right after dinner and got ____ stomachache. Why did that happen?
Well, the problem is ____ you exercised too soon after eating.
This can cause ____ stomach issues.
When you eat, blood rushes to the digestive system to help break down the food and ____ its nutrients.
But when you start to exercise, blood moves from ____ digestive system to your muscles.
This happens in order ____ supply your muscles with the oxygen and nutrients they require.
As a result, the ____ process is paused until the blood returns.
So, whether you’re lifting weights or going for a jog, you shouldn’t do it with a ____ full of food.
____ see. That makes sense. So, does that mean I should exercise on an empty stomach?
No, it doesn’t. That can ____ be harmful and unpleasant.
This is because the ____ needs energy to exercise.
The fuel that provides this energy is ____
Carbohydrates in the ____ we eat are broken down into a kind of sugar called glucose.
When this glucose is stored in parts of ____ body, such as the muscles and the liver, it is called glycogen.
This is why exercising on a completely empty stomach—such as when you first wake up in the morning—can ____ such a challenge.
Your ____ sugar levels are low, and you don’t have enough glycogen stored in your body.
If ____ exercise on an empty stomach, you will most likely lack energy and feel unusually tired.
There can also ____ more serious outcomes.
Some people end up suffering from nausea and headaches, and others ____ faint.
This is because intense exercise uses up all ____ glycogen in your muscles.
Host
____ is it the loss of glycogen that causes us to have low levels of energy?
That’s correct. For this reason, doctors recommend that people eat ____ containing carbohydrates within thirty minutes after working out.
This replaces ____ muscle glycogen you have lost.
Basically, you need between one and one and a half grams of carbohydrates for every kilogram ____ weigh.
Let’s do ____ math. If you weigh 60 kilograms, you should try to consume between 60 and 90 grams of carbohydrates after you exercise.
This is equal to about one ____ of white rice or three bananas.
That’s very interesting. ____ what about eating before we exercise?
Can you explain how long ____ should wait after eating?
Well, as I said before, exercising right ____ you eat will cause feelings of discomfort.
But, if you wait too long to exercise ____ eating, you’ll suffer from a lack of energy.
The best time ____ eat before you exercise varies from one to three hours.
Basically, it depends on several factors such as ____ type and amount of food as well as body size, age, and gender.
The type of exercise ____ matters.
For extremely active exercise like cycling, I suggest that ____ wait between one and a half and three hours after eating a moderate-sized meal.
But for something ____ casual, such as golfing, waiting for one hour after a meal should be enough.
____ you can wait less after eating a snack.
Thank you very much for this fascinating information, Dr. ____
I’m sure it will be very helpful for all of ____ viewers.