As with many things, it's easier to stay healthy if you are wealthy.
You can buy personal training services, workout gear, a home in traffic-calmed neighborhoods where you aren't jogging or cycling along rural highways, a pool, etc.
You can buy fresh fruit and vegetables instead of highly-processed food. If you're American you can buy imported or certified organic meat instead of the hormone-filled shit on the shelves at grocery stores. You can spend less time working and more time cooking healthy, with no pressure to eat fast food because you're in a rush.
You can buy personal training services, workout gear, a home in traffic-calmed neighborhoods where you aren't jogging or cycling along rural highways, a pool, etc.
You can buy fresh fruit and vegetables instead of highly-processed food. If you're American you can buy imported or certified organic meat instead of the hormone-filled shit on the shelves at grocery stores. You can spend less time working and more time cooking healthy, with no pressure to eat fast food because you're in a rush.
Money really does buy happiness.