At what point in your like do we begin to realise that our time is limited ? In other words we're about to die soon or reach a point where our life would be transformed from youthfulness to disability and fragility. Right now and for about another 20-30 years into the future we'll still be young and strong enough to support ourselves and enjoy the great experiences of life. However, once we hit a certain age/point we then come to realise that everyone gets old and our body will begin to deteriorate drestically. 

I'm sure it's different for everyone because the 20-30 is only an estimate; it's society's prediction of old age. I just wonder when ill come to realise that... I'm sure ill be hit with a wave of depression and sadness and possibly regret. Will I show it though ? Talk about it to my wife ? Should it even affect me ?Since everyone knows its gunna happen so why even react to it ?

I've been seeing my grandpa, whose basically on the verge of death. Waiting to die really since he's had lung cancer and gone through chemotherapy. Now he's kidneys have failed - both as a matter of fact - do every few days he has to go to dialysis (a machine/process that filters your kidneys), he's deaf and his sight is severely impaired. What he eats is tightly monitors and there are many things he can't enjoy anymore. 

This sort of life sounds horrible and I'm not sure I'd like to even live like that cause I'd say that's not even living. 

Is death some thing to fear or to accept ?? And how does ones accept its approach when the people around is will clearly be affected by our disappearance ???