It is undoubtedly true that the 
numbers
 of obese Fix the agreement mistake
number
people
 has increased Use synonyms
than
 Change preposition
in
past
 whenCorrect article usage
the past
  a 
very few Correct article usage
apply
people
 suffered Use synonyms
with
 Change preposition
from
this
 epidemic. Linking Words
This
 essay will explain the reasons and describe Linking Words
its
 impact on a person's health and work performance.
There are enormous causes of  the Correct pronoun usage
their
increase
 amount of overweight Change the verb form
increasing
people
; Use synonyms
however
, the most important one is an inactive lifestyle. Nowadays, Linking Words
people
 totally depend on cars Use synonyms
instead
 of  walking even for shorter Linking Words
distance
 Fix the agreement mistake
distances
as well as
 they may not prefer to do work which demands physical Linking Words
efforts
. Fix the agreement mistake
effort
This
 Linking Words
result
 in burning Fix the agreement mistake
results
less
 calories and gaining weight. Change the quantifier
fewer
Moreover
, consumption of Linking Words
ready- made
 has increased. Add a hyphen
ready-made
Due to
 Linking Words
busy
 Correct pronoun usage
their busy
schedule
, most Fix the agreement mistake
schedules
of 
Change preposition
apply
people
 consume processed food, which consists Use synonyms
higher
 fat calories. Consuming higher calories on a regular basis means increasing fat in the body. I thinkChange preposition
of higher
,  
these  are  two main factors in overweight. 
The possible effects of Remove the comma
apply
this
 problem include health problems and loss of productivity. Obesity results in incorrect body functioning and Linking Words
contribute
 to Change the verb form
contributes
develop
 chronic diseases. Replace the word
the development of
For example
, as body fat percentage, Linking Words
increase
, the metabolism worsens. Which become the cause of diabetes and heart Fix the agreement mistake
increases
diseases
. Fix the agreement mistake
disease
Secondly
, overweight Linking Words
people
 are very unhealthy and suffer from stress and tiredness. Use synonyms
This
 not only Linking Words
lessen
 their capacityChange the verb form
lessens
,
 but Remove the comma
apply
also
 Linking Words
performance
 and productivity. It, Correct pronoun usage
their performance
for instance
, has been proven that an obese person needs a lot of Linking Words
efforts
 to complete some work than Fix the agreement mistake
effort
person
 with normal weight. 
In conclusion, obesity has become a serious issue and many Add an article
a person
the person
people
 are affected by Use synonyms
this
. I think that it Linking Words
mainly
 caused by inactive lifestyles and consumption of fast food which leads to health problems and loss of productivity.Add a missing verb
is mainly