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