Megastar of Bollywood Amitabh Bachchan due to a strained neck spotted in a neck brace. The neck strained caused to him by stunts he did in his early days. He on his blog has written about it. 

Big B wrote: "Many have, yes, seen the picture with the neck brace and have expressed either exclamation or remedy, or surprise... It's factual and it's on my neck, because the neck is strained. These are recurrences of old action and stunt injuries right from the time of 'Don' and several other films that came after that have involved my physical movements for action deeds going horribly wrong." 

The superstar added: "The cervical has undergone so many damage inflicting stunts that several vertebrae are damaged, out of position, infected with trauma, and several other complicated medical terminology which I just cannot understand... Resulting in any act or movement or subjection to an awkward resting position, those vertebrae move about again out of position, making it impossible for me to sit stand sleep rest in any position whatsoever." 

He also wrote about need of safety devices: "It was raw it was real and it was injury-centric. We jumped from heights without protection, without soft landing gear, without harnesses that most actors deploy now and without face replacement." 

"Where a double or a duplicate can make the 1960s jump and his face is replaced by the main artist's... So, on screen it looks as if the hero did it... Difficult bike sequences, which involve dangerous riding skills are never with the leading man... They are done with duplicates and the face replaced with that of the leading man," 

Big B added. According to him special effects and VFX has made an actor's life and work easy, "VFX is expensive stuff. Replication of every action of the actor can be pre captured and through replacement made to look real... You need never go to Mt Everest, but you could be put there on top."

Also read:

Alia, Amitabh win big at Zee Cine Awards 2017