Indeed, prevention is much better than cure. But now a days, people don't take the problem serious until it reaches the worst stage. Like people are aware of the disadvantage of smoking but still they smoke until they have to face problems like cancer.
From our childhood, we are taught to brush twice a day, take bath daily, not to eat too much sweets and many good habits but still we are unable to follow all those instruction which are very necessary for our health.Small actions can make huge effects. If we try to prevent our health rather than making it worse and wait for the cure. Prevention saves your time as well as money. Cure of a disease cost too much money and takes a lot of time. Prevention is beneficial in every way. As Benjamin Franklin quoted "An ounce of prevention is better than a pound of cure".
Lastly, One should always prefer prevention from the every first stage of any health problem.