1: "Tai chi is not recommended for pregnant women due to its physical demands."

2: "Individuals with joint injuries should avoid tai chi to prevent further damage."

3: "People with balance issues may find tai chi difficult and should consult a doctor."

4: "If you have osteoporosis, tai chi's low-impact nature may not be suitable for you."

5: "Those with untreated fractures should avoid tai chi to prevent aggravating their condition."

6: "If you have chronic pain, tai chi may exacerbate discomfort and should be avoided."

7: "Patients with severe cardiovascular conditions should consult a physician before trying tai chi."

8: "If you have a recent surgery, tai chi's movements may strain your body and impede recovery."

9: "People with certain medical conditions should seek approval from a healthcare professional before practicing tai chi."