London is the capital city of England and the United Kingdom, located on the banks of the River Thames.

A physician, medical doctor, or doctor, is a professional who practices medicine, which is concerned with promoting, maintaining, or restoring health through the study, diagnosis, and treatment of disease, injury, and other physical and mental impairments.

Physiology is the scientific study of the functions and processes of living organisms.

The Royal Society is a learned society and the United Kingdom's national academy for sciences.

A thesaurus is a reference source that provides synonyms (words with similar meanings) and sometimes antonyms (words with opposite meanings) for various terms.