There is strong evidence of a link between exercise and a healthy heart.

有充分的证据证明锻炼有益于心脏健康。

《牛津词典》

The relationship between exercise and weight loss is complicated.

锻炼和减肥间的关系比较复杂。

youdao

Several studies have proven the link between exercise and stress.

一些研究证明，运动和压力之间存在联系。

youdao

Speaking via Skype, Lubetkin pointed to a clear link between the lack of exercise and the bad health consequences of obesity.

VOA: standard.2010.08.10

It is the largest ground combat exercise conducted between the militaries of the two countries.

VOA: standard.2009.10.26

Preparations are also under way for a joint military exercise between the two.

VOA: standard.2009.10.27

Researchers said they plan to compare the two scans to see if links between exercise and better brain health hold up.

WSJ: Exercise Might Beat Puzzles for Protecting the Aging Brain

Other work suggests a relationship between exercise and attention, too.

FORBES: Magazine Article

Mr. Marer says he skates a fine line between enjoying exercise while shunning overt competition.

WSJ: Hockey Heats Up in Tiny Village With Israel's Only Big Rink