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B1 Intermedio Inglés 4:12 Educational

What is a calorie? - Emma Bryce

TED-Ed · 5,265,353 vistas · Añadido hace 2 semanas

Estadísticas de aprendizaje

B1

Nivel MCER

5/10

Dificultad

Subtítulos (71 segmentos)

00:06

We hear about calories all the time.

00:09

How many calories are in this cookie?

00:11

How many are burned by 100 jumping jacks,

00:13

or long distance running,

00:15

or fidgeting?

00:16

But what is a calorie, really, and how many of them do we actually need?

00:21

Calories are a way of keeping track of the body's energy budget.

00:25

A healthy balance occurs when we put in about as much energy as we lose.

00:30

If we consistently put more energy into our bodies than we burn,

00:34

the excess will gradually be stored as fat in our cells,

00:38

and we'll gain weight.

00:40

If we burn off more energy than we replenish, we'll lose weight.

00:44

So we have to be able to measure the energy we consume and use,

00:48

and we do so with a unit called the calorie.

00:51

One calorie, the kind we measure in food, also called a large calorie,

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