You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is What was the theme for World Health Day in 1976? and explain in detail?
"Foresight prevents blindness" was the slogan chosen by WHO for World Health Day in 1976, when effos were made around the world to raise public awareness about the problem of preventable blindness. Ref: Education Of Communicable And Non-Communicable Diseases By Sumer Lal Goel, 2009, Page 149.