[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-B2-1026":3},{"preview":4,"open":14,"missing":37},{"id":5,"number":6,"total":7,"level":8,"course":9,"activity":10,"discriminator":11,"title":12,"slug":13,"instructions":14,"excerpt":15,"prompts":16,"lock":19,"access":20,"updated":21,"previous_id":22,"next_id":23,"previous":24,"next":28,"first":32},1026,69,83,"B2","reading","long_text","reading_long_text","The Science of Sleep","the-science-of-sleep",null,"We spend roughly a third of our lives asleep, yet for centuries the purpose of sleep remained one of the most stubborn mysteries in biology. It was long assumed that sleep was essentially a period of inactivity - the body's way of conserving energy when there was nothing useful to be done. This view persisted well…",[17,18],"What was the traditional view of sleep that persisted for a long time?","Why was the discovery of REM sleep so significant?","login","pro","2026-10-02T14:14:49",1025,1027,{"id":22,"number":25,"title":26,"slug":27},68,"The Bilingual Advantage","the-bilingual-advantage",{"id":23,"number":29,"title":30,"slug":31},70,"Urban Rewilding","urban-rewilding",{"id":33,"number":34,"title":35,"slug":36},958,1,"On the Trail of Bigfoot","on-the-trail-of-bigfoot",false]