Morning Exercise Linked to Lower Risk of Cardiovascular Disease
Getting up early to exercise could have significant benefits for your heart health. A recent study presented at the annual meeting of the American College of Cardiology suggests that regular morning exercise is associated with a lower risk of developing coronary heart disease, hypertension, type 2 diabetes, and obesity, compared to exercising later in the day.
“Any exercise will always be better than no exercise at all, but we tried to identify an additional dimension related to the time of day one exercises,” explains Prem Patel, a medical student at the University of Massachusetts Chan Medical School and lead author of the study. Exercising in the morning appears to be associated with better indicators of cardiometabolic health.
Quantified Benefits
Researchers analyzed medical records and cardiac data collected via Fitbit devices from over 14,000 individuals. The results demonstrated a clear correlation between morning exercise and reduced health risks.
Compared to those who exercise later in the day, individuals who exercise regularly in the morning showed a 31% lower risk of coronary heart disease, an 18% lower risk of high blood pressure, a 21% lower risk of hyperlipidemia (high levels of LDL cholesterol or triglycerides), a 30% lower risk of type 2 diabetes, and a 35% lower risk of obesity.
Notably, exercise performed between 7 a.m. And 8 a.m. Appeared to be particularly effective.
Why Might Morning Exercise Be More Beneficial?
The researchers emphasize that their study demonstrates an association, not a cause-and-effect relationship. Several factors could contribute to these findings. Biological factors, such as hormones, sleep patterns, and genetics, may play a role.
Behavioral factors are also likely important. Exercising early in the day could lead to increased energy levels and healthier food choices throughout the day. Psychological factors may also be at play; individuals who exercise in the morning may be more likely to prioritize healthy habits overall.
The Importance of Physical Activity for Cardiovascular Health
Physical inactivity is a major risk factor for cardiovascular disease (CVD) and overall mortality. Regular physical activity is independently associated with a reduced risk of CVD and all-cause mortality 1.
For secondary prevention, an active lifestyle is crucial. Guidelines recommend at least 150-300 minutes per week of moderate-intensity or 75-150 minutes per week of vigorous-intensity aerobic exercise, along with moderate-intensity muscle-strengthening activities at least twice weekly 1.
Physical activity is also a protective factor against coronary heart disease, potentially reducing the risk of acute myocardial infarction (MI) and coronary heart disease (CHD) 2.
Exercise Considerations and Precautions
While exercise is generally beneficial, it’s important to be aware of contraindications. Exercise training is not recommended in cases of uncontrolled arrhythmia, active myocarditis or pericarditis, severe symptomatic aortic stenosis, decompensated heart failure, acute aortic dissection, acute pulmonary embolism, or within the first two days after an acute coronary syndrome 1.
Individuals with complex congenital heart disease are generally encouraged to participate in sports and exercise, as improved exercise capacity correlates with better outcomes 4. However, the decision to participate in competitive sports should be individualized based on the patient’s specific anatomy and physiology.