If you have grandparents still alive you should try to spend as much time possible with them. Talk with them, get them to tell your stories from when they were a kid, ask them how their experiences were like in their lives and learn everything you can from them. Many of us no longer have our grandparents around and regret not spending more time with them.
My grandmother was 80 years old in this picture. I use to love to joke with her and tell her she only looked 70, she would always give a big smile and laugh. Unfortunately she is no longer with us and now I regret not spending all my time with her.
So take this as a public service announcement to go spend time with your grandparents and enjoy your time with them while you still can. There is no time machine to take you back to visit them so go spend time with them today.