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3 articles
Light is the body's most powerful external signal, governing vision, sleep timing and even seasonal mood. This article follows a photon's journey through phototransduction and the circadian system, and considers the pharmacological implications for treating sleep disorders and seasonal affective disorder.
Viewing the body's chemical messengers through the lens of a national postal service, this explainer follows a signal from its point of origin to its final destination. Ideal preparation for A-level and undergraduate examinations, with examples drawn directly from UK exam specifications.
Beta blockers, SSRIs, statins and other everyday prescriptions all work by adjusting the same signalling pathways students meet in the textbook. This accessible guide connects the molecules in your local pharmacy to the receptors and cascades they quietly manage.