What If Future You Met Young You.

JohnR41

I would tell myself to stay away from smoking and stay away from jobs where you come in contact with hazardous materials.

I wouldn't give my parents any advice; I wouldn't change anything for them. They had a good life and basically did very well. If I were to tell them to make changes, I might end up not being born.

osandoval1618

Ditto, any alteration to the parents would certainly result in you being unborn!

Bowler59778

As far as future me meeting younger me, I would tell younger me to start thinking and being healthier earlier than what he did. I would also tell him to learn more about the family history as heart problems run in our family. I did not start thinking healthy until my problems started with my heart. That is something I could have avoided if future me had talked to younger me sooner.
With regard to my parents, the only advice I would tell them would be to never start smoking. This way, maybe I could have had them around longer, as I lost both of them within the past three years.