Income limits and benefit amounts depend on the number of qualifying children (0, 1, 2, or 3+). A qualifying child for the EIC must be under 19 years old, or under 24 if a full-time student, or any age if disabled.he income limit depends on the number of âqualifying childrenâ and on whether the tax filer is married or unmarried. 1  The limit for families with no children is $14,590 ($20,020 if married);
Until the age around 25 your brain is not fully developed. The exact age varies person to person, but it's around 25
Brain only fully 'matures' in middle age, claims neuroscientist. You might think that you become fully matur when you turn 21 but new research suggests that your brain does not stop developing until your late 40s. Scientists used to believe that your brain stopped physically evolving in early childhood but new research has shown that keeps changing well into middle age. Brain scans have shown that prefrontal cortex â the area just behind your forehead â continues to change shape in your 30s and 40s.