Which is the correct option to complete the sentence below? ...

Which is the correct option to complete the sentence below?

                    25 simple well-being tricks to health-proof your body

      Let's be honest, we could all do with looking _________ ourselves better. And if you follow these simple well-being tricks to health-proof your body, you'll soon feel the benefits .

      Here are 25 instant body boosters from top to toe.

                     (http://www.mirror.co.uk/lifestyle/health/25-simple-health-tips-boost- 2305412)