seriously beliau dah 50....iols baru tengok filem Bajrangi Bhaijaan..Beliau nampak muda dari usia la... teringat Nobel Prize lecture 2 years ago, ada researcher ni tunjuk gambar beliau sebelum buat PhD dan selepas... totally different..the research totally had taken a toll on his appearance..... but certainly worth it for sure..all the hard work...