This document discusses a study investigating the anti-cancer effects of extracts from five medicinal plants - Solanum viarum, Acanthus illicifolious, Annona squamosa, Alstonia scholaris, and Calotropis gigantea. The study aims to determine the effect of leaf extracts from these plants on human breast cancer and blood cancer cell lines. Specifically, it will analyze the proliferation, viability, and morphological changes of each cancer cell line when treated with extracts from each plant. The introduction provides background on cancer and the need for alternative anti-cancer treatments due to the side effects of conventional therapies.