Lesson 3 How Our Body Works
Timing is Everything
Welcome back to Today’s Health. Today we’re going to be talking ____ exercise.
Dr. ____ Hill is here, and she is going to share some useful tips.
So, Dr. Hill, ____ start with a question about my experience last month.
I worked out right after dinner and got a ____. Why did that happen?
____, the problem is 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 you start to exercise, ____ moves from the digestive system to your muscles.
This happens in order to supply your muscles with the oxygen and ____ 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 ____ do it with a stomach full of food.
I ____. 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 body needs energy to ____.
The fuel that ____ this energy is glycogen.
Carbohydrates in the food we eat are ____ down into a kind of sugar called glucose.
When this glucose is stored in parts of the body, such as the muscles and the liver, it is ____ glycogen.
This is why exercising on a completely empty stomach—such as when you first wake up in the ____ be such a challenge.
Your blood sugar levels are low, and you don’t have enough glycogen stored in your ____.
If you exercise on an ____ stomach, you will most likely lack energy and feel unusually tired.
There ____ also be more serious outcomes.
Some people end up suffering from nausea and headaches, and others ____ faint.
This is because ____ exercise uses up all the glycogen in your muscles.
Host
So, is it the loss of glycogen that causes us to ____ 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 glycogen you ____ lost.
Basically, you need between one and one and a half ____ of carbohydrates for every kilogram you weigh.
Let’s do the math. If you weigh 60 kilograms, you should try to consume between 60 and 90 grams of carbohydrates after ____ exercise.
This is equal to about one bowl of ____ rice or three bananas.
That’s very interesting. But ____ about eating before we exercise?
Can you ____ how long we should wait after eating?
Well, as I said before, exercising right after you eat will cause feelings of ____.
But, if you wait too long to exercise after eating, you’ll suffer ____ a lack of energy.
The best time to ____ before you exercise varies from one to three hours.
____, it depends on several factors such as the type and amount of food as well as body size, age, and gender.
The type of exercise ____ matters.
For extremely active exercise like ____, I suggest that you wait between one and a half and three hours after eating a moderate-sized meal.
But for something more casual, such as golfing, waiting for one hour ____ a meal should be enough.
Clearly, you can wait less after eating a ____.
Thank you very much for this fascinating ____, Dr. Hill.
I’m ____ it will be very helpful for all of our viewers.