Read by critical thinking Global Reading Questions for Group A Step 1 1.How the placebo works to heal the body? One explanation Another explanation 2.The most powerful placebo is. A supporting evidence is 3.What are the bad effects of a placebo?T Global Reading Questions for Group A Step 1 1. How the placebo works to heal the body? One explanation . Another explanation . 2. The most powerful placebo is . A supporting evidence is . 3. What are the bad effects of a placebo?