A strong thesis statement for mental health being more important than physical health could be: "Mental health should be prioritized over physical health because it affects overall well-being and daily functioning, and a positive mental state can improve physical health outcomes."
Two claims to support this thesis could be:
1. Mental health plays a crucial role in determining an individual's quality of life and ability to perform daily tasks, making it a necessary component of overall health.
2. Research has shown that a positive mental state can improve physical health outcomes and aid in faster recovery from physical illnesses, proving the interrelatedness of mental and physical health.