The nerves are compressed and people then experience the symptoms of pain, weakness, and numbness. Other conditions, such as spinal stenosis, spondylolisthesis, or piriformis syndrome can also cause sciatica symptoms by irritating the sciatic nerve.
Related Story: Get to know the Eurovision 2015 finalists. Map: Austria. Swedish singer Mans Zelmerlow has won the 60th Eurovision Song Contest, with Guy Sebastian coming in fifth for wildcard entry Australia.
The winner receives Â£100,000 and a record deal with Universal Republic. There have been five winners to date: Leanne Mitchell, Andrea Begley, Jermain Jackman, Stevie McCrorie and Kevin Simm. The show involves artists drawn from public auditions, and is part of The Voice franchise. It is produced by Wall to Wall as well as Dutch production company Talpa Productions. The BBC won a bidding war with ITV, paying Â£22 million for the rights to broadcast the show in the UK for two years.