Lots of good advice here already, but I'll add one I haven't seen yet: set a good example of regularly exercising at home if possible. My boys are around 8 and

Lots of good advice here already, but I'll add one I haven't seen yet: set a good example of regularly exercising at home if possible. My boys are around 8 and 10 now and after seeing me consistently train over the years, they are both showing interest in going for runs with me, doing bodyweight exercises, and they keep asking me about "trying the weights" (which I'm avoiding for now until I've had more time to research the old advice that they need to wait until teen years). This might be a bit of a balancing act to make sure they don't end up overly obsessed with body image, fad diets, etc but as others have said, your kids will often mirror the behaviors they see... so remember to go easy on yourself too :)