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种一棵树最好的时期是十年前
而后是现在。
游泳是一种健身的好方法，但你会在冰水中游泳吗？进入冷水的瞬间，身体会受到短暂而剧烈的冲击，但有证据表明，这会给身体健康带来的好处。本文介绍冷水游泳的益处。
Vocabulary：wimming
词汇：游泳
Weallknowaboutthehealthbenefitsofswimming.Itoffersagreatworkoutforthebody–itbuildsendurance,musclestrengthandcardiovascularfitness.Ifyoudon’tmindgettingwet,itcanbefuntoo.Butwhowouldenjoyswimminginwaterthat’sicecold?Well,manypeoplearetakingtheplunge,basedonevidencethatitcanactuallybegoodforus.
Cold-waterswimming–sometimescalledwildswimming–involvesswimminginnaturalareasincludingponds,riversandthesea.Jumpingingivesashortsharpshocktothebody,butmanyparticipantssaytheygetusedtoit.Acolddipmightwakeyouup,butresearchhasfounditcanhavemuchbiggerbenefitsthanthatforyourbodyandmind.Aswellasbeinggoodexercise,spendingtimeoutdoorsandbywaterimproveswellbeing.
Thereismuchevidence,mostlyanecdotal,thatsuggestscold-waterswimminghascuredcertainhealthconditions.Onemanwhosufferedconstantpainaftersurgeryclaimedhewascuredbytakingaplungeincoldopenwater.Andanotherswimmer,SandriaSimons,toldtheBBC“theimmersionofyourbodyincold,saltwater,justfeelinglikeyou’reatonewithnatureifyoulike,justfeelsamazing.”
Butwhatisitthatpeoplearegainingfromthischillyexperience?Doctorssaygettingintocoldwaterevokesastressresponse,butthemoreyoudoit,yourreactiontostressisreduced.It’salsothoughttohaveastronganti-inflammatoryeffect.Buttherearebiggerbenefitstothisstress-reducingexercise.Someexpertsbelievecold-waterswimminghelps‘cross-adaptation’,whereoneformofstresspreparesthebodyforanother.Forexample,italsohelpsreducethestressofexercisingathighaltitude.
So,ifyou’reconvincedthatthisisforyou,takeadvice:approachitwithcaution,swimwithafriend,andmaybestartinthesummer,whenthewatertemperaturesarehigher!
词汇表
workout（身体）锻炼，训练endurance忍耐力musclestrength肌肉力量cardiovascularfitness心血管健康taketheplunge决定运动，冒险尝试wildswimming野外游泳pond池塘ashortsharpshock短暂而剧烈的冲击dip游泳wellbeing健康openwater开放水域immersion浸泡atonewithnature与自然融为一体stressresponse应激反应anti-inflammatory消炎的，抗炎的cross-adaptation交叉适应
笔记怪兽
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