(ROOT (S (S (NP (PRP You)) (VP (MD may) (VP (VB know) (NP (DT the) (NN saying))))) (: :) (S (NP (NP (DT An) (NN apple)) (NP (DT a) (NN day))) (VP (VBZ keeps) (NP (DT the) (NN doctor)) (ADVP (RB away)))) (. .)))
You may know the saying: An apple a day keeps the doctor away.
nsubj
Case=Nom|Person=2|PronType=Prs
you
You
PRON
PRP
aux
VerbForm=Fin
may
may
AUX
MD
root
VerbForm=Inf
know
know
VERB
VB
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
saying
saying
NOUN
NN
punct
:
:
PUNCT
:
det
Definite=Ind|PronType=Art
a
An
DET
DT
nsubj
Number=Sing
apple
apple
NOUN
NN
det
Definite=Ind|PronType=Art
a
a
DET
DT
nmod:tmod
Number=Sing
day
day
NOUN
NN
parataxis
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
keep
keeps
VERB
VBZ
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
doctor
doctor
NOUN
NN
xcomp
away
away
ADV
RB
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (DT A) (JJ recent) (NN study)) (PP (IN by) (NP (NP (DT the) (NNP Chinese) (NNP University)) (PP (IN of) (NP (NNP Hong) (NNP Kong)))))) (VP (VBZ has) (VP (VBN discovered) (NP (NP (DT another) (NN saying)) (: :) (S (NP (NP (DT An) (NN apple)) (NP (DT a) (NN day))) (VP (VBZ keeps) (NP (JJ old) (NN age)) (ADVP (RB away))))))) (. .)))
A recent study by the Chinese University of Hong Kong has discovered another saying: An apple a day keeps old age away.
det
Definite=Ind|PronType=Art
a
A
DET
DT
amod
Degree=Pos
recent
recent
ADJ
JJ
nsubj
Number=Sing
study
study
NOUN
NN
case
by
by
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
Chinese
Chinese
ADJ
NNP
nmod
Number=Sing
University
University
PROPN
NNP
case
of
of
ADP
IN
compound
Number=Sing
Hong
Hong
PROPN
NNP
nmod
Number=Sing
Kong
Kong
PROPN
NNP
aux
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
have
has
AUX
VBZ
root
Tense=Past|VerbForm=Part
discover
discovered
VERB
VBN
det
another
another
DET
DT
obj
Number=Sing
saying
saying
NOUN
NN
punct
:
:
PUNCT
:
det
Definite=Ind|PronType=Art
a
An
DET
DT
nsubj
Number=Sing
apple
apple
NOUN
NN
det
Definite=Ind|PronType=Art
a
a
DET
DT
appos
Number=Sing
day
day
NOUN
NN
parataxis
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
keep
keeps
VERB
VBZ
amod
Degree=Pos
old
old
ADJ
JJ
obj
Number=Sing
age
age
NOUN
NN
advmod
away
away
ADV
RB
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (DT The) (NN study)) (VP (VBD involved) (NP (NP (NN fruit) (NNS flies)) (-LRB- -LRB-) (NP (NNS g)) (-RRB- -RRB-)) (, ,) (SBAR (IN as) (S (NP (PRP they)) (VP (VBP share) (NP (JJ many) (NNS genes)) (PP (IN with) (NP (NNS humans))))))) (. .)))
The study involved fruit flies (g), as they share many genes with humans.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
study
study
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
involve
involved
VERB
VBD
compound
Number=Sing
fruit
fruit
NOUN
NN
obj
Number=Plur
fly
flies
NOUN
NNS
punct
(
(
PUNCT
-LRB-
appos
Number=Plur
gram
g
NOUN
NNS
punct
)
)
PUNCT
-RRB-
punct
,
,
PUNCT
,
mark
as
as
SCONJ
IN
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
share
share
VERB
VBP
amod
Degree=Pos
many
many
ADJ
JJ
obj
Number=Plur
gene
genes
NOUN
NNS
case
with
with
ADP
IN
nmod
Number=Plur
human
humans
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (S (NP (NNS Researchers)) (VP (VBD gave) (NP (NP (CD one) (NN group)) (PP (IN of) (NP (NN fruit) (NNS flies)))) (NP (JJ normal) (NN food)))) (, ,) (CC and) (S (NP (NP (DT another) (NN group)) (PP (IN of) (NP (NN fruit) (NNS flies)))) (VP (VBD got) (NP (NP (DT the) (JJ same) (NN food)) (PP (VBG including) (NP (NN apple)))))) (. .)))
Researchers gave one group of fruit flies normal food, and another group of fruit flies got the same food including apple.
nsubj
Number=Plur
researcher
Researchers
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
give
gave
VERB
VBD
nummod
NumForm=Word|NumType=Card
one
one
NUM
CD
obj
Number=Sing
group
group
NOUN
NN
case
of
of
ADP
IN
compound
Number=Sing
fruit
fruit
NOUN
NN
nmod
Number=Plur
fly
flies
NOUN
NNS
amod
Degree=Pos
normal
normal
ADJ
JJ
xcomp
Number=Sing
food
food
NOUN
NN
punct
,
,
PUNCT
,
cc
and
and
CCONJ
CC
det
another
another
DET
DT
nsubj
Number=Sing
group
group
NOUN
NN
case
of
of
ADP
IN
compound
Number=Sing
fruit
fruit
NOUN
NN
nmod
Number=Plur
fly
flies
NOUN
NNS
conj
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
get
got
VERB
VBD
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
same
same
ADJ
JJ
obj
Number=Sing
food
food
NOUN
NN
case
VerbForm=Ger
include
including
VERB
VBG
nmod
Number=Sing
apple
apple
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (DT The) (NNS results)) (VP (VBD showed) (SBAR (IN that) (S (NP (NP (NNS flies)) (SBAR (WHNP (WDT that)) (S (VP (VBD ate) (NP (NN apple)))))) (VP (VBD lived) (ADVP (ADVP (NP (NP (DT an) (NN average)) (PP (IN of) (NP (CD 55) (NNS days)))) (RBR longer)) (PP (IN than) (NP (NP (DT the) (NNS flies)) (SBAR (WHNP (WDT that)) (S (VP (VBD did) (RB n't) (VP (VB eat) (NP (NN apple))))))))))))) (. .)))
The results showed that flies that ate apple lived an average of 55 days longer than the flies that didn't eat apple.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Plur
result
results
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
show
showed
VERB
VBD
mark
that
that
SCONJ
IN
nsubj
Number=Plur
fly
flies
NOUN
NNS
nsubj
PronType=Rel
that
that
PRON
WDT
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
eat
ate
VERB
VBD
obj
Number=Sing
apple
apple
NOUN
NN
ccomp
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
live
lived
VERB
VBD
det
Definite=Ind|PronType=Art
a
an
DET
DT
obj
Number=Sing
average
average
NOUN
NN
case
of
of
ADP
IN
nummod
NumForm=Digit|NumType=Card
55
55
NUM
CD
nmod
Number=Plur
day
days
NOUN
NNS
advmod
Degree=Cmp
long
longer
ADV
RBR
case
than
than
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
fly
flies
NOUN
NNS
nsubj
PronType=Rel
that
that
PRON
WDT
aux
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
do
did
AUX
VBD
advmod
not
n't
PART
RB
acl:relcl
VerbForm=Inf
eat
eat
VERB
VB
obj
Number=Sing
apple
apple
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (S (NP (DT The) (NN study)) (ADVP (RB also)) (VP (VBD found) (SBAR (IN that) (S (NP (JJ apple-eating) (NNS flies)) (VP (VBD were) (ADJP (RBR more) (JJ able) (S (VP (TO to) (VP (VP (VB walk)) (, ,) (VP (VB climb)) (CC and) (VP (VB move) (ADVP (RB about))) (SBAR (IN as) (S (NP (PRP they)) (VP (VBD became) (ADJP (JJ old)))))))))))))) (, ,) (NP (NP (DT the) (NNP Journal)) (PP (IN of) (NP (NML (NNP Agricultural) (CC and) (NNP Food)) (NNP Chemistry)))) (VP (VBZ reports)) (. .)))
The study also found that apple-eating flies were more able to walk, climb and move about as they became old, the Journal of Agricultural and Food Chemistry reports.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
study
study
NOUN
NN
advmod
also
also
ADV
RB
ccomp
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
find
found
VERB
VBD
mark
that
that
SCONJ
IN
amod
Degree=Pos
apple-eating
apple-eating
ADJ
JJ
nsubj
Number=Plur
fly
flies
NOUN
NNS
cop
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
be
were
AUX
VBD
advmod
Degree=Cmp
more
more
ADV
RBR
ccomp
Degree=Pos
able
able
ADJ
JJ
mark
to
to
PART
TO
xcomp
VerbForm=Inf
walk
walk
VERB
VB
punct
,
,
PUNCT
,
conj
VerbForm=Inf
climb
climb
VERB
VB
cc
and
and
CCONJ
CC
conj
VerbForm=Inf
move
move
VERB
VB
advmod
about
about
ADV
RB
mark
as
as
SCONJ
IN
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
become
became
VERB
VBD
xcomp
Degree=Pos
old
old
ADJ
JJ
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Sing
Journal
Journal
PROPN
NNP
case
of
of
ADP
IN
amod
Degree=Pos
agricultural
Agricultural
ADJ
NNP
cc
and
and
CCONJ
CC
conj
Number=Sing
food
Food
PROPN
NNP
nmod
Number=Sing
Chemistry
Chemistry
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
report
reports
VERB
VBZ
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (DT The) (NNS researchers)) (VP (VBP believe) (SBAR (IN that) (S (NP (NP (DT the) (NNS antioxidants)) (VP (VBN found) (PP (IN in) (NP (NNS apples))))) (VP (VBP are) (ADJP (JJ good) (PP (IN for) (NP (NN health)))))))) (. .)))
The researchers believe that the antioxidants found in apples are good for health.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Plur
researcher
researchers
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
believe
believe
VERB
VBP
mark
that
that
SCONJ
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
antioxidant
antioxidants
NOUN
NNS
acl
Tense=Past|VerbForm=Part
find
found
VERB
VBN
case
in
in
ADP
IN
obl
Number=Plur
apple
apples
NOUN
NNS
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
ccomp
Degree=Pos
good
good
ADJ
JJ
case
for
for
ADP
IN
obl
Number=Sing
health
health
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (PP (IN In) (NP (DT another) (NN experiment))) (, ,) (NP (NNS researchers)) (VP (VBD studied) (NP (NP (DT the) (NNS diets)) (PP (IN of) (NP (NP (NNS thousands)) (PP (IN of) (NP (NNS women))))))) (. .)))
In another experiment, researchers studied the diets of thousands of women.
case
in
In
ADP
IN
det
another
another
DET
DT
obl
Number=Sing
experiment
experiment
NOUN
NN
punct
,
,
PUNCT
,
nsubj
Number=Plur
researcher
researchers
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
study
studied
VERB
VBD
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Plur
diet
diets
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Plur
thousand
thousands
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Plur
woman
women
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP They)) (VP (VBD found) (SBAR (IN that) (S (NP (NP (DT those) (NNS women)) (SBAR (WHNP (WP who)) (S (ADVP (RB often)) (VP (VBD ate) (NP (NNS apples)))))) (VP (VBD were) (ADJP (NP (CD 20) (NN percent)) (RBR less) (JJ likely) (S (VP (TO to) (VP (VB have) (NP (NN heart) (NN disease)))))))))) (. .)))
They found that those women who often ate apples were 20 percent less likely to have heart disease.
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
They
PRON
PRP
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
find
found
VERB
VBD
mark
that
that
SCONJ
IN
det
Number=Plur|PronType=Dem
that
those
DET
DT
nsubj
Number=Plur
woman
women
NOUN
NNS
nsubj
PronType=Rel
who
who
PRON
WP
advmod
often
often
ADV
RB
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
eat
ate
VERB
VBD
obj
Number=Plur
apple
apples
NOUN
NNS
cop
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
be
were
AUX
VBD
nummod
NumForm=Digit|NumType=Card
20
20
NUM
CD
obl:npmod
Number=Sing
percent
percent
NOUN
NN
advmod
Degree=Cmp
less
less
ADV
RBR
ccomp
Degree=Pos
likely
likely
ADJ
JJ
mark
to
to
PART
TO
xcomp
VerbForm=Inf
have
have
VERB
VB
compound
Number=Sing
heart
heart
NOUN
NN
obj
Number=Sing
disease
disease
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NNS Scientists)) (VP (VBP have) (ADVP (RB recently)) (VP (VBN discovered) (NP (NP (DT the) (NN apple) (POS 's)) (JJ genetic) (NN code)))) (. .)))
Scientists have recently discovered the apple's genetic code.
nsubj
Number=Plur
scientist
Scientists
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
advmod
recently
recently
ADV
RB
root
Tense=Past|VerbForm=Part
discover
discovered
VERB
VBN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod:poss
Number=Sing
apple
apple
NOUN
NN
case
's
's
PART
POS
amod
Degree=Pos
genetic
genetic
ADJ
JJ
obj
Number=Sing
code
code
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT This)) (VP (VBZ allows) (S (NP (NNS scientists)) (VP (TO to) (VP (VB make) (NP (NP (NP (JJ new) (NNS kinds)) (PP (IN of) (NP (NN fruit)))) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (JJR healthier)))))))))) (. .)))
This allows scientists to make new kinds of fruit that are healthier.
nsubj
Number=Sing|PronType=Dem
this
This
PRON
DT
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
allow
allows
VERB
VBZ
iobj
Number=Plur
scientist
scientists
NOUN
NNS
mark
to
to
PART
TO
xcomp
VerbForm=Inf
make
make
VERB
VB
amod
Degree=Pos
new
new
ADJ
JJ
obj
Number=Plur
kind
kinds
NOUN
NNS
case
of
of
ADP
IN
nmod
Number=Sing
fruit
fruit
NOUN
NN
nsubj
PronType=Rel
that
that
PRON
WDT
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
acl:relcl
Degree=Cmp
healthy
healthier
ADJ
JJR
punct
.
.
PUNCT
.
(ROOT (S (NP (NNS Researchers)) (VP (VBP are) (ADVP (RB already)) (VP (VBG using) (NP (DT this) (NN information)) (S (VP (TO to) (VP (VB grow) (NP (NP (NNS apples)) (PP (IN with) (NP (VBN added) (NNS antioxidants))))))))) (. .)))
Researchers are already using this information to grow apples with added antioxidants.
nsubj
Number=Plur
researcher
Researchers
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
advmod
already
already
ADV
RB
root
Tense=Pres|VerbForm=Part
use
using
VERB
VBG
det
Number=Sing|PronType=Dem
this
this
DET
DT
obj
Number=Sing
information
information
NOUN
NN
mark
to
to
PART
TO
advcl
VerbForm=Inf
grow
grow
VERB
VB
obj
Number=Plur
apple
apples
NOUN
NNS
case
with
with
ADP
IN
amod
Tense=Past|VerbForm=Part
add
added
VERB
VBN
obl
Number=Plur
antioxidant
antioxidants
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (NNS Antioxidants)) (VP (VBP help) (S (VP (TO to) (VP (VP (VB keep) (NP (NNS eyes) (CC and) (NNS joints)) (S (VP (JJ healthy)))) (CC and) (VP (VB protect) (PP (IN against) (NP (NP (NN heart) (NNS attacks)) (CC and) (NP (NN cancer))))))))) (. .)))
Antioxidants help to keep eyes and joints healthy and protect against heart attacks and cancer.
nsubj
Number=Plur
antioxidant
Antioxidants
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
help
help
VERB
VBP
mark
to
to
PART
TO
xcomp
VerbForm=Inf
keep
keep
VERB
VB
obj
Number=Plur
eye
eyes
NOUN
NNS
cc
and
and
CCONJ
CC
conj
Number=Plur
joint
joints
NOUN
NNS
xcomp
Degree=Pos
healthy
healthy
ADJ
JJ
cc
and
and
CCONJ
CC
conj
VerbForm=Inf
protect
protect
VERB
VB
case
against
against
ADP
IN
compound
Number=Sing
heart
heart
NOUN
NN
obl
Number=Plur
attack
attacks
NOUN
NNS
cc
and
and
CCONJ
CC
conj
Number=Sing
cancer
cancer
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NP (NNS Apples)) (SBAR (WHNP (WDT that)) (S (VP (VBP help) (NP (NNS people)) (S (VP (VB lose) (NP (NN weight)))))))) (VP (MD may) (VP (VB be) (PP (IN in) (NP (NNS supermarkets))) (PP (IN in) (NP (QP (RB just) (CD four) (CC or) (CD five)) (NNS years))))) (. .)))
Apples that help people lose weight may be in supermarkets in just four or five years.
nsubj
Number=Plur
apple
Apples
NOUN
NNS
nsubj
PronType=Rel
that
that
PRON
WDT
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
help
help
VERB
VBP
obj
Number=Plur
person
people
NOUN
NNS
xcomp
VerbForm=Inf
lose
lose
VERB
VB
obj
Number=Sing
weight
weight
NOUN
NN
aux
VerbForm=Fin
may
may
AUX
MD
cop
VerbForm=Inf
be
be
AUX
VB
case
in
in
ADP
IN
root
Number=Plur
supermarket
supermarkets
NOUN
NNS
case
in
in
ADP
IN
advmod
just
just
ADV
RB
nummod
NumForm=Word|NumType=Card
four
four
NUM
CD
cc
or
or
CCONJ
CC
conj
NumForm=Word|NumType=Card
five
five
NUM
CD
obl
Number=Plur
year
years
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (PRP They)) (VP (VBP are) (VP (VBN said) (S (VP (TO to) (VP (VB be) (NP (NP (`` ``) (JJ extra) (JJ healthy) ('' '') (NNS apples)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB stop) (NP (NNS people)) (PP (IN from) (S (VP (VBG overeating)))))))))))))) (. .)))
They are said to be "extra healthy" apples that can stop people from overeating.
nsubj:pass
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
They
PRON
PRP
aux:pass
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
root
Tense=Past|VerbForm=Part|Voice=Pass
say
said
VERB
VBN
mark
to
to
PART
TO
cop
VerbForm=Inf
be
be
AUX
VB
punct
``
``
PUNCT
``
advmod
Degree=Pos
extra
extra
ADJ
JJ
amod
Degree=Pos
healthy
healthy
ADJ
JJ
punct
''
''
PUNCT
''
xcomp
Number=Plur
apple
apples
NOUN
NNS
nsubj
PronType=Rel
that
that
PRON
WDT
aux
VerbForm=Fin
can
can
AUX
MD
acl:relcl
VerbForm=Inf
stop
stop
VERB
VB
obj
Number=Plur
person
people
NOUN
NNS
mark
from
from
SCONJ
IN
advcl
VerbForm=Ger
overeate
overeating
VERB
VBG
punct
.
.
PUNCT
.
You may know the saying: An apple a day keeps the doctor away. A recent study by the Chinese University of Hong Kong has discovered another saying: An apple a day keeps old age away.  The study involved fruit flies (g), as they share many genes with humans. Researchers gave one group of fruit flies normal food, and another group of fruit flies got the same food including apple.  The results showed that flies that ate apple lived an average of 55 days longer than the flies that didn't eat apple. The study also found that apple-eating flies were more able to walk, climb and move about as they became old, the Journal of Agricultural and Food Chemistry reports.  The researchers believe that the antioxidants found in apples are good for health.  In another experiment, researchers studied the diets of thousands of women. They found that those women who often ate apples were 20 percent less likely to have heart disease.  Scientists have recently discovered the apple's genetic code. This allows scientists to make new kinds of fruit that are healthier. Researchers are already using this information to grow apples with added antioxidants. Antioxidants help to keep eyes and joints healthy and protect against heart attacks and cancer.  Apples that help people lose weight may be in supermarkets in just four or five years. They are said to be "extra healthy" apples that can stop people from overeating.