Lifestyle habits can influence the “switches” of our genes, thereby increasing or reducing the risk of metabolic syndrome, including obesity, high blood sugar, abnormal blood lipids, and high blood pressure. Research indicates that what we eat, whether we exercise, smoking and alcohol consumption, sleep quality, and long-term stress levels can all modify chemical “marks” on our genes, known as epigenetic changes. Among these, DNA methylation is the most commonly studied mechanism.

Long-term consumption of a high-fat, high-sugar Western-style diet, as well as smoking or excessive alcohol intake, can disrupt the regulation of genes involved in glucose control, lipid metabolism, and inflammation, thereby increasing insulin resistance and the risk of obesity. In contrast, a balanced diet rich in fruits, vegetables, and whole grains, combined with regular physical activity, can help restore these genes to a healthier functional state. Studies also show that insufficient sleep and chronic stress can impair the body’s stress-response system, leading to poorer metabolic function. Overall, these gene-related changes are not permanent; improving lifestyle habits can gradually reverse them, highlighting the crucial role of a healthy lifestyle in preventing metabolic syndrome.

Reference:

Journal of Clinical Sciences 22(2):p 108-118, Apr–Jun 2025