Some people think that singing can lift our spirits (   ), while some other people  don't think so.They don't like singing and they think singing can never make them happy.I do think singing can make us feel good, and it can lift our spirits.Let me tell you more about that. Some researchers   once did some surveys and proved it.The surveys show  that singing can bring a lot of health benefits  .If you sing with your friends, the effects may be even better. John Lennon was once a teacher of Vocal Performance   at Emporia State University.He says, "Singing is an inborn   need.Babies sing to themselves and they seem so happy.Like babies, when we sing, we feel so good and singing makes us feel even better.I like singing and I am happy every day." Music is a part of human nature.And singing is a form of expression that can be understood by everyone.Some people say that music is like a kind of language.The language can show people's opinions and attitudes  to their life.Some songs can cheer people up when they are in trouble.Some songs can make people happy and excited.That's why the TV show The Voice of China is so popular with people. According to some surveys, singing can bring   _  .
health benefits health problems happiness and success some trouble