Is it OK to marry someone 7 years older than you?

The secret to a longer life is to marry someone the same age, at least if you are a woman, researchers say. However, a woman who is between seven and nine years older than her husband has a 20% greater mortality rate than if she were with a man the same age.

Is a seven year age gap OK?

This rule states that by dividing your own age by two and then adding seven you can find the socially acceptable minimum age of anyone you want to date. So if youre a 24-year-old, you can feel free to be with anyone who is at least 19 (12 + 7) but not someone who is 18.