Why do I need to share my age or date of birth when buying the policy?
The insurance company needs these details to assess your health risks and offer the best plan. Declaring the health conditions beforehand helps ensure that your claims are not rejected by the insurance provider.
 

Related Questions
Is Health Insurance compulsory?
Is it compulsory to provide my height and weight-related details?Is there an advantage to purchasing a health insurance policy at an early age?