For people who are 50+ in Southern Ontario, understanding the balance between genetics (nature) and lifestyle/environment (nurture) is key to aging well. The nature vs. nurture debate explores whether our health is primarily shaped by inherited traits or by life experiences and choices.

Nature refers to the genetic blueprint we inherit—risk factors for conditions like heart disease, diabetes, or dementia. Studies from Ontario universities show that traits like blood pressure and cholesterol levels have strong genetic components. However, genes are not destiny.

Nurture includes everything from diet and exercise to social connections and access to healthcare. Southern Ontario’s public health initiatives—like walkable communities and wellness programs—play a vital role in helping older adults offset genetic risks. According to Ontario Library Publishing, behavioural genetics research confirms that genes and environment always interact to shape outcomes.

For example, someone with a family history of Alzheimer’s may reduce their risk by staying mentally active, eating well, and managing stress. This reflects the growing field of epigenetics, which shows how lifestyle can influence gene expression.

In short, while you may inherit certain health risks, your choices and surroundings can significantly impact your wellbeing—especially after 50.

By Daria Horbal, BSc.Phm.