These are the most frequently used words in this book.
able
activity
another
antibodies
believe
benefits
better
blood
body
cause
cells
cfs
chronic
condition
cure
day
depression
different
difficult
disability
disease
doctor
does
during
effects
enough
even
exercise
experience
fact
family
fatigue
feel
feeling
find
first
found
friends
health
help
however
ill
illness
immune
important
infection
know
life
longer
loved
may
medications
medicine
might
must
myself
need
new
now
often
others
own
pain
patients
people
person
physicians
possible
problems
rest
security
seem
shawn
should
since
sleep
social
still
strength
suffering
symptoms
syndrome
system
take
tests
therefore
things
think
though
time
treatment
try
two
unable
use
virus
vitamins
without
work
years