The runner will not be able to use a phone, computer or any electronic device other than his treadmill.
Seeking to help young people fight addiction, Bulgarian runner Kras Georgiev has taken on a strange challenge.
Where he will live inside a glass box for 15 days in a park located in the Bulgarian capital, Sofia. The runner will not be able to use a phone, computer or any electronic device other than his treadmill.
Through this challenge, the Bulgarian athlete wants to raise money to help young people fight addiction.
Georgiev runs on a treadmill inside his glass cage, while passers-by watch and cheer.
Georgiev is an ambassador for philanthropy and has run nearly 30 marathons around the world as well as a 217km race in Death Valley, California.