Health is not an adjective and therefore does not have comparative and superlative forms.Healthy, however, is an adjective, with the comparative form of healthier and the superlative form of healthiest.
well (healthy) comparative is better and superlative is the best
what is the comparative and superlative of glad
What is the comparative and superlative of Often
comparative - merrier superlative - merriest
comparative - rockier superlative - rockiest
comparative is calmer superlative is calmest
The comparative is higher. The superlative is highest.