Number of siblings may be linked to risk of cardiovascular disease
First-born children are at lower risk of heart attack and stroke than their siblings – provided that the number of siblings does not exceed three; then it is the other way around. And people without siblings have a higher risk of heart attack and stroke later in life compared to those who have siblings. These are among the findings of a new population study from Lund University published in BMJ Op
https://www.medicine.lu.se/article/number-siblings-may-be-linked-risk-cardiovascular-disease - 2025-11-29
