hi alice. my advice about what to do is to not worry about those two things since they don't matter at all! but i'll tell you why, since you don't know me so you don't have any reason to believe me.
life expentancy is a way the game measures the health of your empire. on all of your city screens you can see healthy and unhealthy faces up on the top. life expentancy is number of all of the healthy faces in your empire, divided by ALL the faces in your empire together, the healthy and unhealthy ones. it's a fancy way of saying "you have 100 citizens, but only 70 are healthy so your life expentancy is 70 years", or whatever your real numbers are.
approval is the same thing, but for happy faces. if you have 100 citizens, your approval rate will be how many of that 100 are happy.
the game i have open right now my life expentancy is 62 years and my approval is 53%. that sounds pretty bad doesn't it?
those numbers don't matter for your score though. i don't even know why they're there. i don't go by those ratings, i just look at each city and figure out what they need. at 100 BC usually things aren't too bad, but as the game gets later sometimes my cities get really unhealthy and i have to build stuff to make them healthier, or find resources that will give them health. even if those numbers did matter for score, i wouldn't worry about them since i play for fun and i don't care what the game thinks my score is. if i did something i thought i wouldn't be able to do, or i did something for the first time that i'm proud of, then i like that and i don't need a number on a chart. not everybody's like me that way tho.
have fun playing! welcome to CFC. playing civ can be very addicting. if i started playing it when i was 8 years old i might have forgotten to do a lot of homework
