According to Dr. Sergey Bubnovskij, the famous Moscow specialist for Kinesitherapy, this approach has the power to restore the immune system function in 15 seconds.
He recommends it for all people. Particularly, those who have a free job. He says that this simple method will strengthen up your immunity.
Every single night, right after you come back home after a busy day. Get yourself in the tub. Put a large bowl of completely cool (icy) water.
Make sure you are not touching a hot water.