Exercising at This Time of Day May Lower Your Blood Pressure by Nearly Twice as Much

Key Points:

• A recent randomized controlled trial published in Open Heart found that exercising in sync with one's natural body clock, or chronotype, leads to greater improvements in blood pressure, cholesterol, and sleep quality compared to exercising at mismatched times.
• The study involved over 130 adults aged 40 to 60 with cardiovascular risk factors, who performed five 40-minute moderate aerobic sessions per week for 12 weeks, either matched or mismatched to their chronotype.
• Participants exercising at times aligned with their chronotype saw nearly double the reduction in systolic blood pressure and greater improvements in sleep quality, aerobic fitness, heart rate variability, fasting glucose, and LDL cholesterol.
• Researchers suggest that "chrono-exercise" helps peripheral body clocks function more efficiently, reducing inflammation and improving metabolic health, potentially offering a personalized, drug-free approach to heart disease prevention.
• Experts recommend incorporating chronotype assessments into lifestyle advice for at-risk patients but emphasize the need for larger, more diverse studies before widespread clinical adoption.