This Is the Most Powerful Drug Ever — but Not What You’d Expect

The surprising “drug” is not a tablet, injection or newly discovered chemical. Researchers at the University of the Witwatersrand argue that movement is one of medicine’s most powerful and underused interventions, influencing physical health, mental well-being and recovery from illness.

“Most powerful drug ever” is an attention-grabbing metaphor, not the result of a clinical ranking against every medication. Exercise cannot replace necessary treatment, but extensive evidence shows that regular movement affects far more systems than many people realise.