Portrait of Lord Melvyn Bragg, host of In Our Time

Sleep

Sleep is a state of reduced mental and physical activity, in which consciousness is altered, and sensory activity is inhibited to a certain extent. During sleep, there is a decrease in muscle activity, and interactions with the surrounding environment are significantly reduced.

2 episodes

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  1. Circadian rhythms

    Melvyn Bragg and guests discuss the evolution and role of circadian rhythms, the so-called body clock influencing a daily cycle of physical, behavioural and mental changes.

    17 December 2015

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    Featuring: Russell Foster, Debra Skene, Steve Jones

     
  2. Dreams

    Melvyn Bragg discusses the function and interpretation of dreams. Why are neuroscientists starting to find reasons to take dreams seriously again?

    4 March 2004

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    Featuring: VS Ramachandran, Mark Solms, Martin Conway