lotsofcaffei
e（咖啡因）i
them．Thesedri
ksareespeciallyaimedatyou
g
people，stude
ts，busypeoplea
dsportsplayers．Makessometimessaytheirdri
ks
makeyoubetteratsportsa
dca
keepyouawake．Butbecareful
ottodri
ktoo
much．
Caffei
emakesyourheartbeatfast，Becauseofthis，theI
ter
atio
alOlympic
Committeehaslimiteditsuse．Caffei
ei
moste
ergydri
ksisatleastasstro
gas
thati
acupofcoffeeortea．Possiblehealthda
gershavesomethi
gtodowith
e
ergydri
ks．Justo
eboxofe
ergydri
kca
makeyou
ervous，havedifficulty
sleepi
ga
dca
eve
causeheartproblems．Scie
tistssaythattee
agersshouldbe
discouragedfromtaki
gdri
kswithalotofcaffei
ei
them．
第7页（共38页）
f46．The