The key answer of exercise 1

Tai Chi is a traditional martial art (which comes / coming) from China.

It has a worldwide following (worldwide) and its practice can lead to a focused state of calmness. In China it's often practised somewhere outdoors with other like-minded people.

It is claimed that a (plant-based) vegan diet of plant-based food increases weight loss and has proven health benefits. People following this diet / who follow this diet often started giving up meat as vegetarians and say they have a reluctance to harm or eat animals.