Insurers understand that your need for life insurance may change throughout your life, so you may want more coverage in the future, which means buying one or more new life insurance plans.
However, the insurers are interested in how much total life insurance coverage you own, so you aren't over-insured, which may give rise to a potential for buying life insurance when you expect to die soon.
Usually, insurers are OK with you owning up to 20 times your annual income in life insurance.
So, if you make $100,000 per year, you likely won't have trouble getting up to $2,000,000 of life insurance if you are healthy and can afford the premiums.
Learn more about how many life insurances you can have.