I have always been taught and believed surah yaseen has many virtues, and is known as the heart of the Holy Quran. I usually recite this surah after Fajar Salaah. But I could not find any sahih daleel for this, and fabricated ahadith have been appointed to the virtues of surah yaseen, that you will have 70 needs fulfilled if read in the morning, and if read regularly, at night then the person died his death will be of a martyr. This is a widespread belief but I failed to find evidence from Holy Quran and Sunnah (Sahih Bukhari/Muslim).

Allah SWT knows best.