Studies show that the 4-5 year age gap provides the most stable relationship. Gaps more than 8 to 10 years show higher disillusionment, quarrels and disturbed interpersonal relationships, leading to separation and divorce Bigger age gaps might have worked well for some, but cannot generalise.

Is age gap good in marriage?

In many countries, the age difference between spouses at marriage has remained relatively stable for several decades. Previous studies of the age gap between spouses with respect to mortality found that having a younger spouse is beneficial, while having an older spouse is detrimental for ones own survival.