1   Listen to and read the text about the causes of obesity.

2   Read the text again and guess the meaning of the unknown words from the context.

Everybody knows that the main factors leading to obesity are having an inactive lifestyle and eating too much.
An average person needs to eat about 2,000 calories every day to maintain their weight. Men generally need more calories than women, and people who exercise need more calories than people who don’t.
However, a person’s specific daily calorie intake can vary depending on a lot of other factors like their age and physical activity level. If you take in more calories than you burn through exercise and normal daily activities, you will become obese. Your body does not burn the excess calories, but stores them as fat. This is why a sedentary lifestyle is extremely harmful.
Studies have shown that obesity and excess weight can increase the risk of developing a number of health conditions, including diabetes and cancer. Unfortunately, our diets are too high in calories and are full of fast food and high-calorie beverages.

3   Listen to and repeat the new vocabulary items.

4   Check the meanings of  the new vocabulary items.

  factor   tényező   excess  felesleges, túlzott
  inactive   mozgásszegény   store    tárol
  average   átlagos   sedentary   ülő
  maintain megtart, fenntart   obesity   elhízás
  exercise   testmozgás   health   conditions   egészségügyi   probléma 
  calorie intake   kalóriabevitel   high in   magas tartalmú
  obese   elhízott   beverage   ital