But is it all true1000字作文
Physical fitness is today's hot topic. And everywhere you turn you hear something new. But is it all true?
The more you sweat, the more fat you burn .
This myth has encouraged people to work out in extreme heat or wear layers of clothes or rubber or plastic weight-loss suits in the hope of sweating fat off. Unfortunately, it's water they're losing, not fat.
Fat burns when it is used as a fuel source for exercise, which doesn't happen initially. When you first begin to exercise, you burn carbohydrates or sugars. It takes about 20 minutes of easy to moderate aerobic activity before the transition from burning sugars to fat begins. (Aerobic exercise is any rhythmic and continuous activity that uses oxygen and large muscle masses of the body, such as the arms and legs. Examples are bicycle riding, jumping rope, walking, jogging, aerobic dance, and swimming.) So, to burn the flab, plan on working out at least 40 minutes.
If you stop working out, your muscles will turn to fat.
If you decrease your activity and continue to eat the same or more, you may gain back that spare tire that you worked so hard to lose. It's not, however, because your muscles turned to fat. Muscles may atrophy or lose their tone, but they won't turn to fat. Muscle is muscle and fat is fat.
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you turn you hear something1000字
Physicalfitnessistoday"shottopic.Andeverywhereyouturnyouhearsomethingnew.Butisitalltrue?Themoreyousweat,themorefatyouburn.Thismythhasencouragedpeopletoworkoutinextremeheatorwearlayersofclothesorrubberorplasticweight-losssuitsinthehopeofswea...
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I want to introduce 1200字
Today,whatIwanttointroducetoyouisafitnesshammerformymother.Inappearance,itlookslikeabowwithalongtail".Itsabout30centimeterslongand6~7centimeterswide.Itisanessentialfitnessequipmentinlife.Infact,inlife,therearemanykindsofdifferentfitnesshamm...
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人口与自然1200字
1998年夏季,我国长江下游地区连续普降暴雨,洪水袭击了中国人口稠密、经济发达的地区。但暴雨并不是造成这次洪涝灾害的唯一原因。更多的是人为因素。这说明大自然已经对我们吹起了警号。大自然对我们警号长鸣的原因是什么呢?是我们不遵循客观规律,对大自然肆意破坏...
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做运动
Let'sDoSportsIthinkit'sveryimportantforeveryonetodosports.Ilikesportsbecausethey'renotonlygoodformyhealthbutalsogoodformystudy.Myfavoritesportisswimming.WheneverIamfree,Iwillhaveaswimwithmyfriendsintheswimmingpool.Afterswimming,Iu...
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