I was sent these lovely books to review: What's Your Excuse For Not Getting Fit? and What's Your Excuse for Not Eating Healthily? - both by Joanne Henson.
The basic premise of the books is... it's like you're having a conversation with one of those people who doesn't take any of your shit.
You say "I can't go to the gym, I'm too tired" and Joanne says Countless studies have found that regular exercise reduces feelings of fatigue.
You say "I can't eat healthily because I have to prepare meals my kids will eat" and Joanne says Just because they say they don't like it the first time doesn't mean they won't like it a second time if it is served differently.