All of us should buy health insurance and for all members of our family, according to our needs. Buying health insurance protects us from the sudden, unexpected costs of hospitalization (or other covered health events, like critical illnesses) which would otherwise make a major dent into household savings or even lead to indebtedness.Each of us is exposed to various health hazards and a medical emergency can strike anyone of us without any prior warning. Healthcare is increasingly expensive, with technological advances, new procedures and more effective medicines that have also driven up the costs of healthcare. While these high treatment expenses may be beyond the reach of many, taking the security of health insurance is much more affordable.