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