Weallhaveabiologicalclocktickingawayinsideusthatgovernsourdailyrhythms.Thisaffectsourhealthasmuchasourdietandwhetherweexercise.Sowhatcanwedotomanagethisinternalclockbetter? 　　Tofindout,evolutionarybiologistEllaAl-ShamahilocksformercommandoAldoKaneinanabandonednuclearbunkerwithnowayoftellingthetime-fortendays.Monito...