Health insurance is a way to pool money so that at least some medical expenses are reimbursed or paid for by the insurance company. If you have health insurance, the money you pay as a monthly premium is pooled with all the other premiums paid by people in your health insurance group, and then claims are made against this pool of money when covered medical services are received by the insured person (or family members if it is a family plan rather than an individual plan).
In the United States, group health insurance is mostly offered through employers. But there is also the option of individual health insurance. If you buy an individual health insurance policy, your costs will be determined by factors such as your age, medical history, weight, and smoking history. Often, conditions that you have before purchasing individual medical insurance will be excluded from coverage, at least for a period of six months.
That is one reason why most Americans who have health insurance are part of group health insurance plans at their place of work. These group plans must accommodate any employee who enrolls, regardless of existing health conditions. Again, there may be provisions that any pre-existing health condition will not be covered for the first few months.
Most people cannot afford individual medical insurance policies. With rapidly rising medical costs in recent years, even group plans offered through employers are becoming too expensive for many people to afford. But group policies are still by far the best option for most people, particularly if they have a family who can be covered under the same policy.
In the United States, it is estimated that 46 million Americans go without health insurance, leaving them vulnerable to enormous expenses in the event of a major illness or accident.
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