Can Astrology tell person’s life Span

A person’s birth time is pre-decided based on the past life(s), and so is the departure date from this earth. As humans, we always aspire to live a long life. Ayushmaan Bhava, or live long, is probably the most common and desired blessing we seek through our elders. But another fact is that we all descend to the recurring life with fixed Ayushya (Age) or life span irrespective of longings or blessings for a long life! Then one wonders why some questions usually stir our minds: