There are a lot of people who can't get back to where they were health-wise even though this is the goal/hope of most people.
この場合、次のような言い方ができます。
ーThere are a lot of people who can't get back to where they were health-wise even though this is the goal/hope of most people.
「多くの人の目標/希望ではあるが、健康の面において、以前の状態に戻れない人たちがたくさんいる」
ご参考まで!