Hektoen International

A Journal of Medical Humanities

Tag: genetic mutations

  • A note on circadian clocks

    JMS Pearce Hull, England   I first started to enquire about circadian rhythms when wondering what it was that caused the periodicity of migraines in relationship to such diverse factors as emotions, tiredness, relaxation, hormonal changes, bright lights, and noise.1 The periodic threshold appeared susceptible to hypothalamic function, which in turn was modulated by seasonal…