According to a recent research done in US, it was found that parents with at least one son experience faster cognitive decline, compared to someone who has no son.
Looks like having atleast one son makes your brain work extra harder.
Study also found that parents with more than one son lost their cognitive abilities faster than parents with only daughters.
The researchers have not investigrated what was to blame for the effect yet although they did find that an aspect of parenting sons "'might play a role in cognitive ageing."
Around 13,222 parents participated in the study since 14 years ago until now.
The researchers suggested the parents of sons may be more likely to be "disadvantaged later in life" because "daughters provide more social support than sons and more often become informal caregivers".
The researchers also stated that this study was based on all the childrens by the participants whether they were bilogical, adopted or step-children.
So basically parents with sons have an extral mental health workout when raising them as opposed to raising daughters.