2 sentences

1. 规律的运动有助于增强心肌。

   guī​lǜ de yùn​dòng yǒu​zhù​yú zēng​qiáng xīn​jī.

   Regular exercise helps strengthen the heart muscle.

   Source: Dong Chinese Dictionary

2. 长期的高血压可能导致心肌肥大。

   cháng​qī de gāo​xuè​yā kě​néng dǎo​zhì xīn​jī féi​dà.

   Long-term high blood pressure may lead to myocardial hypertrophy.

   Source: Dong Chinese Dictionary