مطالعه نشان می‌دهد که مزایای آواز پرندگان برای تقویت خلق و خوی ناشی از سر و صدای ترافیک از بین می‌رود

Mood-boosting benefits of birdsong drowned out by traffic noise, study finds

Even low levels of traffic noise can negate the benefits of listening to natural sounds, researchers say Hearing the trill or whistle of a bird while going about daily life is well known to boost people’s mood. But a new study suggests the psychological benefits of hearing birdsong are being threatened by traffic noise. Researchers found that even low levels of traffic noise negatively affected the benefits to…